Category: Energy Management Objective Questions

Energy & Environment Management Multiple Choice Questions on “Causes of Water Pollution”.

1. Which of the following organisms found in human waste that cause water pollution?
a) Coliform bacteria
b) Viruses
c) Protozoa
d) Parasitic worms
Answer: a
Clarification: Humans waste contains concentrated populations of coliform bacteria such as Escherichia coli and Streptococcus faecalis. These bacteria normally grow in the large intestine of the human body. Releasing of such wastes to water cause pollution in water bodies.

2. What is oxygen depleting waste?
a) Organic waste that can be decomposed by aerobic bacteria
b) Organic waste that can be decomposed by anaerobic bacteria
c) Organic waste that can be decomposed by aerobic viruses
d) Organic waste that can be decomposed by anaerobic viruses
Answer: a
Clarification: Oxygen depleting waste is organic that can be decomposed by aerobic bacteria. Large populations of bacteria use up the oxygen present in the water in order to degrade these wastes. This degrades the water quality as it uses up the oxygen.

3. What is the indicator of pollution in water?
a) Amount of oxygen
b) Amount of hydrogen
c) Amount of BOD
d) Amount of nitrogen
Answer: c
Clarification: The amount of oxygen required to break down a certain amount of organic matter is called the biological oxygen demand (BOD). The amount of BOD in water is an indicator of the level of pollution.

4. Why certain parts of water bodies contain more number of algae?
a) Due to favorable environment
b) Due to run-off excess fertilizers
c) Due to lack of fertilizers
d) Due to water pollution
Answer: b
Clarification: Inorganic plant nutrients found in fertilizers. Run-off carries excess fertilizers into nearby water bodies, causing high levels of plant nutrients which promote the excessive growth of algae and other aquatic plants.

5. What are water soluble inorganic chemicals?
a) Compounds of pure metals
b) Compounds of non-metals
c) Compounds of synthetic metals
d) Compounds of toxic metals
Answer: d
Clarification: Water soluble inorganic chemicals are acids, salts and compounds of toxic metals such as mercury and lead. High levels of these chemicals can make the water unfit to drink and harm fish and other aquatic life.

6. There is only one class of common water pollutants.
a) True
b) False
Answer: b
Clarification: There are several classes of common water pollutants. These classes of water pollutants harm the environment by polluting the water. Some of the classes of common water pollutants are Disease causing agents, oxygen depleting waste, inorganic plant nutrients etc.

7. Who sediment of suspended matter occurs?
a) When soil is eroded from the air
b) When soil is eroded from the land
c) When soil is eroded from the water
d) When soil is eroded from the rock
Answer: b
Clarification: Sediment of suspended matter occurs when the soil is eroded from the land. High levels of soil particles which are suspended in water interfere with the penetration of sunlight. This reduces the photosynthetic activity of aquatic plants and algae.

8. What is a sediment of suspended matter?
a) Insoluble particles of soil and other solids
b) Soluble particles of soil and other solids
c) Insoluble particles of water
d) Soluble particles of water
Answer: a
Clarification: Sediment of suspended matter is insoluble particles of soil and other solids that become suspended in water. When the velocity of water in streams and rivers decreases, the suspended particles settle down at the bottom as sediments.

9. Where we can find water soluble radioactive isotopes?
a) In radioactive reactor
b) In radioactive coolant
c) In radioactive shield
d) In radioactive waste
Answer: d
Clarification: Water soluble radioactive isotopes are contained in the radioactive waste. They can be concentrated in various tissues and organs as they pass through food chains and food web. The ionizing radiation can cause cancer and genetic damage.

10. What is the main reason for thermal pollution?
a) Increase in the temperature of the ecosystem
b) Increase in the chemical contains in water
c) Hot water released by power plants and industries
d) Pollution causing by vehicles
Answer: c
Clarification: The hot water released by power plants and industries that use large volumes of water to cool the plant. This result in a rise in temperature of the water bodies, due to this thermal pollution occurs.

11. Why thermal pollution causing the release of hot water by power plants is dangerous?
a) They increase the solubility of oxygen
b) They decrease the solubility of oxygen
c) They don’t dissolve oxygen
d) They dissolve nitrogen
Answer: b
Clarification: Hot water released by power plants and industries warm water bodies those which are connected to power plants and industries. This warm water decreases the solubility of oxygen and it changes the breeding cycles of various aquatic organisms.

12. How to minimize the pollution of water pollution due organic chemicals that release to water bodies?
a) To remove all the aquatic organisms from the water
b) To purify water manually after released to the water bodies
c) Purify the water before enter the water directly from industries
d) Leave the water bodies without using it
Answer: c
Clarification: Organic chemicals are harmful to aquatic life and human health. These include oil, gasoline, detergents and many other chemicals. They enter the water directly from industrial activity from improper handling of chemicals in industries.

13. The birds lay eggs with shells that are much thinner than normal is an example of_______________
a) Bioaccumulation
b) Mutation
c) DNA sequence
d) Mal nutrients
Answer: a
Clarification: The pesticides that eat by an organism keep on moving in an aquatic food chain. At each link in the food chain, these chemicals which do not pass out of the body get accumulated and cause bioaccumulation. High levels of pesticides such as DDT can cause thin shells in bird eggs.

14. Leakage of oil from underground tanks can pollute groundwater.
a) True
b) False
Answer: a
Clarification: Oil is another chemical which can enter surface water bodies. The leakage from underground tanks can also pollute groundwater. Accidental oil spills from large transport tankers at sea have been causing significant environment pollution.

Environment Management Questions and Answers for Aptitude test on “Wildlife Conservation in India”.

1. When did World Wild Fund for Nature-India (WWF-India) established?
a) 1956
b) 1969
c) 1976
d) 1997
Answer: b
Clarification: WWF-India is the Indian part of the WWF. WWF-India is one of India’s leading conservation organizations. It was established as a charitable trust in 1969, it has massed almost five decades of experience in the field.

2. Which of the following organization launched an Education for Sustainable Development program?
a) Indian Forest Department
b) Indian Environment Conservation
c) WWF-India
d) Indian Pollution Board
Answer: c
Clarification: WWF-India launched an Education for Sustainable Development program in June 2013. This program including a trainer kit with materials in six languages. The program was targeted at teacher training and educational bodies responsible for curriculum.

3. Which of the following is the most important human activity leading to the extinction of wildlife?
a) Afforestation
b) Controlling of pollution level
c) Destruction of the natural habitats
d) Stop hunting animals
Answer: c
Clarification: Destruction of the natural habitats is the most important human activity leading to the extinction of wildlife. Deforestation of the natural habitats of animals affects the species of complete area.

4. How can we preserve viable material of endangered species?
a) By mutation
b) By cloning
c) By gene bank
d) By gene pool
Answer: c
Clarification: Viable materials of any endangered species can be preserved by a gene bank. Gene bank is an institute that maintains stocks of seed banks, tissue culture and frozen germplasm with certain precautionary measures.

5. Which of the following vertebrates have the highest number of endangered species?
a) Fishes
b) Birds
c) Reptiles
d) Mammals
Answer: d
Clarification: Mammals group of vertebrates comprises the highest number of endangered species. One in four of the world’s mammal species face extinction, according to a new conservation report card. Marine mammals face even steeper odds, with one in three species at risk of extinction.

6. Some of the most threatened species are found in Asia.
a) True
b) False
Answer: a
Clarification: Asia is a region undergoing rapid human population and economic growth. Some of the most threatened species are found in Asia. Currently, 79 percent of Asia’s primate species face extinction.

7. Which year Wildlife Protection Act was implemented in India?
a) 1970
b) 1971
c) 1972
d) 1973
Answer: c
Clarification: The Wildlife Protection Act was implemented in 1972. It is an Act of the Parliament of India enacted for protection of plants and animals species. The Act established schedules of protected plant and animal species.

8. In which of the following states Nagarhole National Park located?
a) Karnataka
b) Kerala
c) Assam
d) Tamil Nadu
Answer: a
Clarification: Nagarhole National Park is located in Kodagu District and Mysore district in Karnataka. It is established in 1988. This park was declared the 37th ‘Project Tiger’ Tiger reserves of India in the year 1999.

9. Which is the natural habitat of Indian lion?
a) Western Ghats
b) Sunderban delta
c) Gir forest
d) Himalayas
Answer: c
Clarification: Natural habitat of Indian lion is Gir forest, Gujarat. Gir Forest National Park and Wildlife Sanctuary established in 1965. According to 2015 census there were 523 lions situated in Gir Forest National Park.

10. What is called for a scheme to protect and conserve bio-diversity?
a) Biosphere
b) Bio-reserve
c) Biotechnology
d) Bio-ecology
Answer: b
Clarification: Bio-reserve is a scheme to protect and conserve bio-diversity. The central area preserves the flora and fauna. The surrounding zone is utilized for research and experiments regarding conserve bio-diversity.

11. Which of the following is a step taken by the government to protect the wildlife?
a) Control the population of animals in forest
b) Proper food facilities to the animals in forest
c) Deforestation to provide space for urbanization
d) Various Project to protect animals in forest
Answer: d
Clarification: The Government of India took various steps to the wildlife. The major among them is establishing of various projects in order to protect the wildlife. Some of the projects are Project Tiger, Project Rhino, Project Great Indian Bustard and many more.

12. Which type of wildlife is found in Ganga-Brahmaputra delta?
a) Lions
b) Yak
c) Royal Bengal
d) Sheep
Answer: c
Clarification: Ganga-Brahmaputra delta is a natural habitat for many animals. Prominent natural habitat in Ganga-Brahmaputra delta is Royal Bengal Tiger. Some of the other organisms are turtles, snakes, crocodiles and so on.

13. Which lake in Northeast India has the world’s only floating National Park?
a) Dal Lake
b) Loktak Lake
c) Lake Tsomgo
d) Shilloi Lake
Answer: b
Clarification: Loktak Lake in Manipur has the worlds only floating National Park. It is the largest freshwater lake in Northeast India. Keibul Lamjao National Park located at the south western part of the Loktak Lake is the world’s only floating National Park.

14. The Indian government is undertaking many efforts for conservation of its wildlife.
a) True
b) False
Answer: a
Clarification: The Coast Guard Act, Wildlife Protection Act, Environmental Protection Act and Biological Diversity Act are some of the biggest undertaking of the Indian government towards the conservation of wildlife.

Environment Management for Aptitude test,

Energy & Environment Management Multiple Choice Questions on “Human Rights”.

1. Which of the following are moral principles that describe certain standards of human behavior and are regularly protected as legal rights?
a) National rights
b) Human rights
c) Women rights
d) Men rights
Answer: b
Clarification: Human rights are rights inherent to human beings, whatever our place of residence, origin, nationality, sex, religion, language or any other status. These rights are all interrelated, interdependent and indivisible.

2. When did the Universal Declaration of Human Rights created?
a) 1947
b) 1948
c) 1949
d) 1950
Answer: b
Clarification: The Universal Declaration of Human Rights was adopted by the United Nations General Assembly at its third session on 10 December 1948. It was adopted as Resolution 217 at the Palais de Chaillot in Paris, France.

3. Which is the world’s first charter of human rights?
a) The Cyrus Cylinder
b) The Constitution of Media
c) Bill of Rights
d) The Magna Carta
Answer: a
Clarification: The Cyrus Cylinder which was created by King Cyrus the Great, it is the world’s first charter of human rights. It is translated into all six official languages of the United Nations and its provisions parallel the first four Articles of the Universal Declaration of Human Rights.

4. Which one of the following played an important role in international human rights law?
a) World war
b) Economic summit
c) The United Nations
d) Treaty of Baskerville
Answer: c
Clarification: The United Nations has played an important role in international human-rights law since its creation in 1945 at Yalta Conference. The allied powers agreed to create a new body to supplant the League’s role.

5. In which century human rights became a central concern over the issue of slavery?
a) 15^th
b) 17^th
c) 19^th
d) 21^th
Answer: c
Clarification: In the 19^th century, human rights became a central concern over the issue of slavery. This was achieved across the British Empire by the Slave Trade Act 1807. This Slave Trade Act was enforced internationally by the Royal Navy under treaties Britain negotiated with other nations.

6. Ancient peoples have the same modern day conception of universal human rights.
a) True
b) False
Answer: b
Clarification: Ancient peoples did not have the same modern day conception of universal human rights. The true forerunner of human rights discourse was the concept of natural rights which appeared as part of the medieval natural law.

7. When did the Cairo Declaration on Human Rights in Islam adopted?
a) 1985
b) 1990
c) 1995
d) 2000
Answer: b
Clarification: The Cairo Declaration on Human Rights in Islam is a declaration of the member states of the Organization of Islamic Cooperation adopted at Cairo in Egypt on 5 August 1990. It provides an overview on the Islamic perspective on human rights.

8. In which country ‘Declaration of the Rights of Man and of the Citizen’ was adopted?
a) India
b) France
c) China
d) Denmark
Answer: b
Clarification: After French Revolution, in 1789 the ‘Declaration of the Rights of Man and of the Citizen’ was adopted by the National Constituent Assembly as the first step toward writing a constitution for the Republic of France.

9. When did the first Geneva Convention took place?
a) 1756
b) 1864
c) 1958
d) 2006
Answer: b
Clarification: The first Geneva Convention took place in 1864. The diplomatic conference was held for the purpose of adopting a convention for the treatment of wounded soldiers in brutal combat. This saves thousands of lives.

10. Under whose chairmanship The United Declaration of Human Rights was adopted?
a) Eleanor Roosevelt
b) Jawaharlal Nehru
c) Adolf Hitler
d) Queen Elizabeth
Answer: a
Clarification: In 1948, the Universal Declaration of Human Rights was adopted by the United Nations. It was adopted under the dynamic chairmanship of Eleanor Roosevelt. Roosevelt, credited with its inspiration, referred to the Declaration as the international Magna Carta for all mankind.

11. How many articles are there in the Universal Declaration of Human Rights?
a) 10
b) 20
c) 30
d) 40
Answer: c
Clarification: There are 30 articles are there in the Universal Declaration of Human Rights which was adopted in 1948. This Universal Declaration of Human Rights is essential to promote the development of friendly relations between nations.

12. Which of the following Article of the Universal Declaration of Human Rights tells the right of nationality is depends on ones wish?
a) Article 10
b) Article 15
c) Article 20
d) Article 25
Answer: b
Clarification: There are 30 articles are there in the Universal Declaration of Human Rights which was adopted on December 10, 1948. Article 15 tells that, “Everyone has the right to a nationality” and “No one shall be arbitrary neither deprived of his nationality nor denied the right to change his nationality”.

13. When did the National Human Rights Commission (NHRC) of India constituted?
a) 1990
b) 1991
c) 1992
d) 1993
Answer: d
Clarification: The National Human Rights Commission of India was constituted on 12 October 1993. It is an autonomous public body. It was constituted under the Protection of Human Rights Ordinance in 1993.

14. Human rights and civil rights are the same.
a) True
b) False
Answer: b
Clarification: Human rights and civil rights are different. Human rights are usually agreed upon rights that people of various groups believe all people regardless of gender, religion or any other status. Civil rights deal more with the agreed upon obligation on government owes to its people.

Energy & Environment Management Multiple Choice Questions on “Non Renewable Resources”.

1. A non-renewable resource is a finite resource.
a) True
b) False
Answer: a
Clarification: A non-renewable resource does not renew itself or which can’t be regenerated after it is used. If we have used it once, we will not be able to reuse or recycle it for the second time. Some of the examples of non-renewable resources are Earth minerals, fossil fuels etc.

2. Which of the below theory is related to non-renewable resources?
a) Game Theory
b) Phlogiston Theory
c) Big Bang Theory
d) Hotelling’s Theory
Answer: d
Clarification: This theory is proposed by Harold Hotelling. This theory states that owners of non-renewable resources will only produce a supply of their product if it will yield more value when compared to other financial instruments available to them on market like bonds and interest bearing securities.

3. Bill Gates, Chairman of the Board for Terra Power Company is associated in which of the following non-renewable resources?
a) Earth minerals
b) Fossil fuels
c) Nuclear energy
d) Metal ores
Answer: c
Clarification: Terra Power is a nuclear energy technology company based in Bellevue, Washington. It works to raise global living standards by creating new forms of energy. The primary technology of this company is Traveling wave reactor. It activities are in the fields of nuclear energy and related sciences, which are yielding significant innovations in the safety and economics of nuclear power and hybrid-energy.

4. The below schematic diagram represents which life cycle?

a) Carbon Life Cycle
b) Earth minerals Life Cycle
c) Phosphorus Life Cycle
d) Fossil Fuel Life Cycle
Answer: d
Clarification: In the Fossil Fuel Life Cycle various processes take place. Raw material, its discovery and extraction followed by the combustion of the raw material in order to generate necessary energy. While generating energy many harmful particles release to the atmosphere causing pollution.

5. The primary composition of coal is _______________
a) Nitrogen
b) Carbon
c) Oxygen
d) Hydrogen
Answer: b
Clarification: Coal is a naturally found fossil fuel formed by the anaerobic decay of plant life taking place over millions of years. It is extracted from the underground by coal mining. The primary composition of coal is carbon while nitrogen, oxygen, and hydrogen comes under secondary composition.

6. Which Ministry is mainly responsible for refining, distribution, import, export of petroleum products and natural gas in India?
a) Ministry of Petroleum and Natural Gas
b) Ministry of Fossil Fuel
c) Ministry of Non-Renewable Energy
d) Ministry of Oil
Answer: a
Clarification: Ministry of Petroleum and Natural Gas is a ministry of the Government of India. The ministry is working to develop the exploration and exploitation of petroleum resources for supplementing the energy requirements of India. At present the ministry is headed by the Cabinet Minister Dharmendra Pradhan (2014-Incumbent).

7. Where is the first oil well drilled in Asia?
a) Karachi, Pakistan
b) Assam, India
c) Tokyo, Japan
d) Kandy, Sri Lanka
Answer: b
Clarification: Oil deposits were first discovered in Assam-Arrakan Basin at Digboi in 1889. In 1901, Asia’s first oil refinery was set at Digboi in Assam. Digboi is the oldest oil well operating in India. In order to look after the oil business in this area, Assam Oil Company was formed in 1899.

8. The most abundantly available fossil fuel in India is _____________
a) Coal
b) Natural Gas
c) Petroleum
d) Oil
Answer: a
Clarification: Coal is the most abundantly available fossil fuel in India. There are different forms of coal available they are, 1) Peat: Peat is produced by the decaying of plants in swamps. 2) Bituminous: It derives its name after liquid called bitumen. 3) Lignite: This form is used to produce electricity. 4) Anthracite: It has more than 90% carbon content per kg and it is the best quality coal.

9. Which of the following nonrenewable energy is not classified under a fossil fuel?
a) Nuclear
b) Petroleum
c) Oil
d) Natural gas
Answer: a
Clarification: Nuclear energy is not a fossil fuel. Fossil fuels are based on materials that, a very long time ago were living animal or trees. Uranium used as fuel in nuclear power plants was never a living thing, thus Nuclear energy is not classified under fossil fuel.

10. The major non-renewable energy usage in India is___________
a) Coal
b) Petroleum and other liquids
c) Natural gas
d) Nuclear
Answer: a
Clarification: Around 50% of India’s commercial energy demand is met through the country’s vast coal reserves. Coal is cheaper than petroleum. For industrial progress cheap energy is necessity for this coal comes into picture. Due to huge presence of coal reserve it remains as the most important source of energy usage in India.

11. Natural gas is a non-renewable energy.
a) True
b) False
Answer: a
Clarification: Yes, natural gas is a non-renewable energy. It takes millions of years to form once it is converted into energy. Natural gas is used as a fuel for vehicles. It is found in deep underground rock and some of them are found in coal beds.

12. How many Nuclear power stations are there in India?
a) 5
b) 6
c) 7
d) 8
Answer: c
Clarification: There are 7 nuclear power stations are here in India they are, 1) Tarapur having total capacity of 1400 MW, 2) Rawatbhata having total capacity of 1180 MW, 3) Kudankulam having total capacity of 2000MW, 4) Kaiga having total capacity of 880 MW, 5) Kakrapar having total capacity of 440 MW, 6) Kalpakkam having total capacity of 440 MW, 7) Narora having total capacity of 440 MW.

Energy & Environment Management Multiple Choice Questions on “Ecological Succession”.

1. How many types of ecological succession are there?
a) One
b) Two
c) Three
d) Four
Answer: c
Clarification: There are two types of ecological succession they are primary succession, secondary succession and cyclic succession. Primary succession occurs when a new land is formed which provide habitant to colonized for first time. In secondary succession there is a recolonized in a previously occupied area.

2. What is called for the term used to express a community in its final stage of succession?
a) End community
b) Final community
c) Climax community
d) Dark community
Answer: c
Clarification: The term climax community is used to express a community in its final stage of succession. The climax community may change if there are changed in climate or long term evolutionary changes in species.

3. What is called for the term in which all the living organisms that occupy an area undergoing primary succession in the beginning stages?
a) Climax community
b) Settled community
c) Dense community
d) Pioneer community
Answer: d
Clarification: When succession occurs in any particular area smaller species such as bacteria, fungi are usually first to come in. These first organisms that settle an area make up the pioneer community. These pioneer communities later lead to biological succession.

4. What is called for the process when older communities of plants and animals are replaced by newer communities?
a) Evolution
b) Deforestation
c) Forestation
d) Ecological succession
Answer: d
Clarification: Ecological succession can be defined as changing sequence of communities that live in an ecosystem during a given time period. The actual species involved in a succession in a particular area can control by geology, climate, soil type and other environmental factors.

5. Which process occurs after a volcanic eruption?
a) Primary succession
b) Secondary succession
c) Nitrogen fixation
d) Oxidation
Answer: b
Clarification: Secondary succession refers to the concept of an ecosystem reviving itself after all has been destroyed. In an area where a volcano erupts the lava inside cause damage to the plant and tree life. If the land which was affected by volcanic eruption and not covered in new volcanic rock, roots or plants parts in soil could renew.

6. Species diversity hurts ecological succession.
a) True
b) False
Answer: b
Clarification: Species diversity does not contribute for ecological succession. The diversity among the species is high at pioneer community. However as time passed competition and interaction causes a significant drop in species diversity.

7. Soil changes due to erosion is an example of which of the following succession?
a) Allogenic succession
b) Autogenic succession
c) Computational succession
d) Emigrational succession
Answer: a
Clarification: Succession driven by the abiotic components of an ecosystem is known as allogenic succession. In contrast, an autogenic succession is driven by the biotic components of the ecosystem. Allogenic succession happens on a time scale that is proportionate with the disturbance.

8. What is called for the succession driven by the biotic components of an ecosystem?
a) Allogenic succession
b) Autogenic succession
c) Computational succession
d) Migration succession
Answer: b
Clarification: In autogenic succession plants they cause succession to occur light captured by leaves, production of detritus and nitrogen fixation. Autogenic succession can be viewed as a secondary succession because of pre existing plant life.

9. What is called for a pattern of vegetation change in which a small number of species tend to replace each other over time in the absence of large scale disturbance?
a) Primary succession
b) Secondary succession
c) Tertiary succession
d) Cyclic succession
Answer: d
Clarification: Cyclic ecological succession happens within established communities and is merely a changing of the structure of the ecosystem on a cyclical basis. In cyclic replacement observation that made has provided evidence against end state climax community.

10. Which is the first process in ecological succession?
a) Nudation
b) Migration
c) Ecesis
d) Aggregation
Answer: a
Clarification: Nudation is defined as the development of a bare site uninhabited by any organisms. This nudation is usually caused by disturbances in topographic, climatic or biotic factors. The areas formed can sustain only autotrophic organisms which can utilize in organic substrates.

11. What is called for the succession occurring within a microhabitat?
a) Primary succession
b) Nudation
c) Serule
d) Climax succession
Answer: c
Clarification: Micro-organisms such as fungi and bacteria occurring within a microhabitat known as serule. This type of succession occurs in newly available habitat. Changes of pH in a habitat could provide ideal conditions for a new species to inhabit the area.

12. What is called for the climax which is governed by more than one climate?
a) Climatic climax
b) Catastrophic climax
c) Sub climax
d) Edaphic climax
Answer: d
Clarification: Community in which climax is governed by more than one climax communities in a region, soil nutrients, soil moisture, scope exposure and animal activity is called as edaphic climax. Soil factors like salinity, alkalinity determined climax community.

13. After landslide which of the following type of succession occurs?
a) Primary
b) Secondary
c) Tertiary
d) Climax
Answer: a
Clarification: Succession is generally regarded as primary when it occurs on a landslide where rock and subsoil, virtually free of organic matter are exposed, despite the fact that landslide was formed the substratum just beneath a developed soil carrying vegetation.

14. Ecesis is the initial establishment of the plant community.
a) True
b) False
Answer: a
Clarification: Ecesis is dependent on the soil structure and it is the initial establishment of the plant community. In this stage, the early colonizing species proliferate abundantly through germination, growth and reproduction. It is due to allogenic mechanisms.

Environment Management Quiz on “Control Measures of Water Pollution”.

1. How agricultural management helps in the control of water pollution?
a) By giving an idea about the use of land management
b) By increase the water intake
c) By using poor soil which consumes less water
d) By encouraging farmers to use more chemicals
Answer: a
Clarification: Land use is one of the agricultural management which helps in the control of water pollution. It includes crop rotation systems and the proportion of the land area devoted to permanent crops relating to annual tillage crops.

2. How soil resistance can increase against erosion?
a) By maintaining the water inflow
b) By maintaining the physical structure of soil
c) By maintaining the environmental conditions
d) By increasing the manure given to the plants
Answer: b
Clarification: Increasing soil resistance against erosion can be achieved by maintain the physical structure of soils. Good farming practices allow for adequate inputs of organic fertilization by digging in crop residues.

3. Why ground water monitoring is important in control of water pollution?
a) To provide more quantity of water
b) To increase the chemical contains in the water
c) To provide good quality of water
d) To reduce the amount of water supplying from ground water
Answer: c
Clarification: Ground water monitoring techniques provide a better means of distinguishing the temporal process of ground water contamination and provide good quality of water for drinking and for other daily chores.

4. How can we reduce the effluent volume of water to maintain its pollution level?
a) Increase the upstream flow by low flow augmentation
b) Decrease the upstream flow by low flow augmentation
c) Increase the upstream flow by high flow augmentation
d) Decrease the upstream flow by high flow augmentation
Answer: a
Clarification: One of the measures to control water pollution is to reduce the effluent volume by increasing the upstream flow by low flow augmentation. This means releases from upstream reservoir storage from nearby water bodies.

5. In order to control the water pollution of pathogenic bacteria, viruses and parasites, how many categories are there?
a) One
b) Two
c) Three
d) Four
Answer: c
Clarification: The three broad categories for control of pathogenic bacteria, viruses and parasites are, control at the initial source of the micro-organisms, control at the area of water use, and control of the product that is affected by contamination.

6. Redesign of synthetic detergents to reduce foaming can minimize water pollution in little quantity.
a) True
b) False
Answer: a
Clarification: Redesign of synthetic detergents to reduce foaming and downstream transport through increased biodegradation rate. This can control water pollution. Thus the chemicals released by detergents can also be reduced.

7. How are aquatic weeds used in controlling water pollution?
a) They use as a decorative substances
b) They use as biological filters
c) They use as chemicals
d) They used to upgrade wastewater treatment
Answer: d
Clarification: Aquatic weeds are used to upgrade wastewater treatment lagoons and treat chemical wastewaters. It can readily absorb, accumulate and concentrate heavy metals such as lead, mercury and cadmium.

8. What is the pH range of effluent after treatment?
a) Between 4.4 and 5.5
b) Between 4.8 and 6.1
c) Between 6.8 and 7.8
d) Between 7.8 and 8.3
Answer: c
Clarification: The pH of effluent after treatment has been found to be between 6.8 and 7.8, which is an ideal range of fresh water. As the metals are extracted from the effluents, it causes considerable cleaning of the effluent.

9. Why controlled use of water hyacinth is important in controlling of water pollution?
a) To decrease the BOD level
b) To increase the BOD level
c) To completely vanish the BOD level
d) To maintain the BOD level
Answer: b
Clarification: The controlled use of water hyacinth I conjunction with waste stabilization increases the BOD removal capacity of these systems. It also reduces the high total suspended solids normally associated with sewage lagoons.

10. When did water cess act come into force?
a) 1973
b) 1975
c) 1977
d) 1980
Answer: c
Clarification: Water cess act came into force in 1977. It is one of the important law which aims to reduce and prevent water pollution. Its effects have been limited in controlling water pollution. Strict implementation is necessary for effective prevention of water pollution.

11. Which of the following is not a way to minimize the disposal of toxic wastes into the water?
a) To create awareness about the pollution happening on water for people
b) To minimize the use of pesticides and chemicals into the agricultural fields
c) Recycle of plastic materials
d) Encouraging the disposals of electronic waste into the water bodies
Answer: d
Clarification: Out of the above four options encouraging the disposals of e-waste is not a way to minimize the disposal of toxic wastes into the water. The e-waste cause pollution to the water bodies so a proper treatment must be give before disposal.

12. Why the flowing water of the river cannot be cleaned easily by natural process?
a) Because a large number of external substances are discharged into the water
b) Because external climatic conditions are not favorable to clean the water
c) The following water is already cleaned before flowing itself
d) Because of lack of space to clean the water
Answer: a
Clarification: The flowing water of the river cannot be cleaned easily by a natural process since a large number of external substances are discharged into the water, the river water becomes polluted. These cause diseases to the people using river water.

13. Water that has been exposed to a substance other than water I called as_____________
a) Water purification
b) Water strength
c) Water contamination
d) Water desolation
Answer: c
Clarification: Water can be contaminated with natural elements and as well as from the materialistic things. All contaminated water is polluted, but all polluted water is contaminated with something. So a proper treatment for contaminated water can avoid the pollution of water.

14. Monitor used of motor oil can reduce water pollution.
a) True
b) False
Answer: a
Clarification: Many hazardous waste products that are used for cars, such as motor oil and gasoline are very dangerous. Motor oil contains potentially dangerous heavy metals such as lead and cadmium. So a proper monitor of this can avoid water pollution.

Environment Management for Quizzes,