250+ TOP MCQs on Environmental Degradation & Use of Renewable Energy – I and Answers

Power Plant Engineering Multiple Choice Questions on “Environmental Degradation & Use of Renewable Energy – I”.

1. What is the harm from the depletion of Earth’s ozone layer?
a) The average temperature of earth’s surface will increase gradually
b) The oxygen content of the atmosphere will decrease
c) Increased amount of Ultra violet radiation will reach earth’s surface
d) Sea levels will rise as the polar ice caps will gradually melt

Answer: c
Clarification: The decrease in the oxygen content of the atmosphere is the only harm from the depletion of Earth’s Ozone Layer.

2. Acid rain is formed due to contribution from the following pair of gases?
a) Methane and ozone
b) Oxygen and nitrous oxide
c) Methane and sulphur dioxide
d) Carbon dioxide and sulphur dioxide

Answer: b
Clarification: Acid rain is formed due to contribution of Methane & Sulphur dioxide.

3. Which of the following is a prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?
a) Damage to digestive system
b) Increased liver cancer
c) Neurological disorder
d) Increased skin cancer

Answer: d
Clarification: Increased risk of Skin Cancer is the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone.

4. Which is the most serious environmental effect posed by hazardous wastes?
a) air pollution
b) contamination of groundwater
c) increased use of land for landfills
d) destruction of habitat

Answer: b
Clarification: The most serious environmental effect posed by hazardous wastes is contamination of groundwater.

5. The concentration of which gas is highest in our environment?
a) Oxygen
b) Hydrogen
c) Nitrogen
d) Carbon dioxide

Answer: c
Clarification: Nitrogen has the highest concentration in the environment constituting about 71% of the environmental gases.

6. Which of the following is not as a consequence of global warming?
a) rising sea level
b) increased agricultural productivity worldwide
c) worsening health effects
d) increased storm frequency and intensity

Answer: b
Clarification: Increased agricultural productivity is not a consequence of global warming.

7. Which of the following is not a primary contributor to the greenhouse effect?
a) carbon dioxide
b) carbon monoxide
c) chlorofluorocarbons
d) methane gas

Answer: c
Clarification: CFC’s aren’t a primary contributor to the greenhouse effect.

8. The increase in the concentration of CO₂ in our environment in last fifty years; since 1960 is about _________
a) 20%
b) 10%
c) 14%
d) 6%

Answer: c
Clarification: The increase in the concentration of CO₂ in our environment in last fifty years; since 1960 is about 14%.

9. The depletion in the Ozone layer is caused by _________
a) nitrous oxide
b) carbon dioxide
c) chlorofluorocarbons
d) methane

Answer: c
Clarification: The depletion in the Ozone layer is caused by Chlorofluorocarbons.

10. A major in-stream use of water is for _________
a) producing hydroelectric power
b) dissolving industrial wastes
c) agricultural irrigation
d) domestic use

Answer: a
Clarification: Production of hydroelectric power is a major in-stream use of water.