MCQ on Greenhouse Effects
Multiple Choice Questions (MCQ Quiz) on Greenhouse Effects & Climate Change with answers and explanation. The MCQ based on traditional, contemporary and current affairs parts of air pollution’s/environmental issues, which is referred from the NCERT, News Papers and websites like NASA and others. It is useful for various competitive exams like UPSC, UPPSC, BPSC, IAS/PCS and others.
Que 1. What is greenhouse effect?
a) Decrease Earth’s temperature
b) Increase Earth’s temperature
c) Heat trapped around Earth’s surface
d) Maintain Earth’s temperature
Answer: (c)
Explanation: The greenhouse effect is the way in which heat
is trapped close to Earth’s surface by “greenhouse gases.”
Que 2. Which One of the Following Is not a Greenhouse Gas?
a) Methane
b) Carbon Monoxide
c) Carbon Dioxide
d) Water Vapour
Answer: (b)
Explanation: The major greenhouse gases are carbon dioxide,
methane, nitrous oxides, and water vapor.
Que 3. Consider the following statements regarding
greenhouse gases:
1. They can absorb heat.
2. They are emitting naturally and anthropogenic.
Which of the given above statements is/are correct?
a) 1 only
b) 2 only
c) 1 and 2
d) None
Answer: (c)
Explanation: Gases that trap heat in the atmosphere are
called greenhouse gases. The emissions of these gases through naturally and human
activities.
Que 4. It is the primary greenhouse gas emitted through
human activities. Its warming effect helps stabilize Earth’s atmosphere. Removal
of it from atmosphere would collapse the terrestrial greenhouse effect. It is
best description of:
a) Methane
b) Water Vapour
c) Carbon Dioxide
d) Nitrous Oxide
Answer: (c)
Explanation: According to Scientists, Carbon Dioxide’s
warming effect helps stabilize Earth’s atmosphere. Remove carbon dioxide, and
the terrestrial greenhouse effect would collapse. Without carbon dioxide,
Earth’s surface would be some 33°C (59°F) cooler. It is the primary greenhouse
gas emitted through human activities.
Que 5. What is temperature of the Earth without the
greenhouse effect?
a) Slightly reduce
b) Increase
c) Constant
d) Below Freezing Point
Answer: (d)
Explanation: Without the greenhouse effect, Earth’s
temperature would be below freezing. It is, in part, a natural process. That is
warming the climate of our planet.
Que 6. By burning of fossil fuels, what will be occur in the
atmosphere?
a) Reduce Earth’s Temperature
b) Reduces greenhouse gases
c) Increased greenhouse gases
d) No effects on Earth’s Temperature
Answer: (c)
Explanation: When fossil fuels are burnt, massive amount of greenhouse
gas are released into the atmosphere. Global warming is caused by greenhouse
gases, which trap heat in our atmosphere.
Que 7. Which one of the following is most potent greenhouse
gas as well as ozone depleting substance?
a) CO2
b) CFCs
c) NO
d) CH4
Answer: (b)
Explanation: The chlorofluorocarbons (CFCs), are greenhouse
gases, absorbing some of the infrared radiation emitted by the Earth’s surface,
thereby effectively heating the Earth’s surface. The same gas that is causing
more potently ozone depletion are also contributing to climate change.
Que 8. Which one of the following greenhouse gases is increasing
and very high quantities in the atmosphere?
a) Carbon Monoxide
b) Carbon Dioxide
c) Methane
d) Chlorofluorocarbons
Answer: (b)
Explanation: Over the last century, burning of fossil fuels
like coal and petroleum has increased the concentration of atmospheric carbon
dioxide (CO2).
Carbon dioxide is present in a very high quantity in the atmosphere.
Que 9. The gases with a higher GWP and high lifetime to contribute
most global warming.
a) Sulfur hexafluoride (SF6)
b) Hydro fluorocarbons (HFCs)
c) Nitrous oxide
d) Carbon dioxide
Answer: (a)
Explanation: Sulfur hexafluoride (SF6) is a higher Global
warming potential (GWP) and high lifetime to contribute most global warming.
Que 10. The biggest contributor to the greenhouse effect:
a) Carbon Monoxide
b) Carbon Dioxide
c) Methane
d) Water Vapour
Answer: (d)
Explanation: Water vapour is the biggest overall contributor
to the greenhouse effect. The CO2 and other greenhouse gases is
increasing the amount of water vapour in the air by boosting the rate of
evaporation.
Que 11. Consider the following regarding the Greenhouse
Effect:
1. It is a natural phenomenon.
2. Balancing the Earth’s temperature.
3. Greenhouse gases absorbs and re-emit infrared radiation.
Which of the given above statements are correct?
a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Answer: (d)
Explanation: The greenhouse effect is a naturally occurring
phenomenon that blankets the earth lower atmosphere and warms it, maintaining
the temperature suitable for living things to survive. The Earth re-emits
longer wavelengths infrared radiation back into the atmosphere.
Que 12. The carbon dioxide (CO2) emission has changed in the
atmosphere. It is influenced by how many factors?
1. Population growth
2. Industrialization
3. War
4. Seasonal Changes
5. Pandemic
Select the correct code given below:
a) 1, 2, 3, and 4
b) 1, 2, and 5
c) 2, 3, 4, and 5
d) 1, 2, 3, 4, and 5
Answer: (d)
Explanation: Changes in CO2 emissions from fossil fuel
combustion are influenced by many factors, including population growth,
economic growth, changing energy prices, new technologies, changing behavior,
seasonal temperatures, pandemic, war, International agreements and local
participations.
Que 13. Climate Change caused by:
a)Greenhouse Gases
b)Depletion of the Ozone Layer
c)Pollution
d) All of Above
Answer: (d)
Que 14. The concept of Greenhouse Gases was postulated by:
a)C.C. Park
b) JNN Jeffer
c) Joseph Fourier
d) L. Jobler
Answer: (c)
Que 15. Kyoto Protocol is related to:
a) Air Pollution
b) Climate Change
c) Ozone Depletion
d) Greenhouse Gas
Answer: (b)
Also Solve: MCQ on Air Pollution
References: NCERT, NASA and others…