1. : The main greenhouse gas responsible for global warming is:
(A) Nitrogen
(B) Carbon dioxide (CO₂)
(C) Oxygen
(D) Argon
2. : Which gas has the highest global warming potential (GWP)?
(A) Methane (CH₄)
(B) Nitrous oxide (N₂O)
(C) Chlorofluorocarbons (CFCs)
(D) Carbon dioxide (CO₂)
3. : The Kyoto Protocol (1997) mainly addresses:
(A) Ozone layer protection
(B) Control of greenhouse gas emissions
(C) Waste management
(D) Water pollution
4. : The Paris Agreement (2015) aims to limit global temperature rise to:
(A) Below 4°C compared to pre-industrial levels
(B) Below 2°C, preferably 1.5°C
(C) Below 3.5°C
(D) 5°C or less
5. : Which sector is the largest contributor to global greenhouse gas emissions?
(A) Agriculture
(B) Energy (electricity and heat production)
(C) Transportation
(D) Industry
6. : The Intergovernmental Panel on Climate Change (IPCC) was established in:
(A) 1972
(B) 1988
(C) 1992
(D) 2000
7. : Which of the following is a natural greenhouse gas?
(A) Methane
(B) Carbon dioxide
(C) Water vapor
(D) All of the above
8. : Which human activity contributes the most to carbon dioxide emissions?
(A) Agriculture
(B) Burning of fossil fuels
(C) Deforestation
(D) Waste disposal
9. : The primary cause of sea level rise due to climate change is:
(A) Volcanic eruptions
(B) Melting of glaciers and thermal expansion of seawater
(C) Earthquakes
(D) Ocean currents
10. : Which of the following is an impact of global warming?
(A) Increased frequency of extreme weather events
(B) Melting of ice caps
(C) Loss of biodiversity
(D) All of the above
11. : Which country is the largest emitter of CO₂ globally?
(A) USA
(B) China
(C) India
(D) Russia
12. : Deforestation contributes to global warming mainly by:
(A) Reducing rainfall
(B) Increasing oxygen release
(C) Decreasing CO₂ absorption
(D) Increasing biodiversity
13. : Which international summit is known as “Earth Summit”?
(A) Rio de Janeiro, 1992
(B) Kyoto, 1997
(C) Paris, 2015
(D) Montreal, 1987
14. : The main greenhouse gas released from agriculture is:
(A) Nitrous oxide (N₂O)
(B) Carbon dioxide (CO₂)
(C) Methane (CH₄)
(D) Ozone (O₃)
15. : Which layer of the atmosphere contains the greenhouse gases?
(A) Troposphere
(B) Stratosphere
(C) Mesosphere
(D) Thermosphere
16. : Which renewable energy source can help reduce greenhouse gas emissions significantly?
(A) Solar energy
(B) Wind energy
(C) Hydropower
(D) All of the above
17. : Ocean acidification is caused by:
(A) Excess nitrogen runoff
(B) CO₂ absorption by seawater
(C) Oil spills
(D) Thermal pollution
18. : Which of the following is considered a short-lived climate pollutant (SLCP)?
(A) Carbon dioxide
(B) Methane
(C) Nitrous oxide
(D) Oxygen
19. : The main international body assessing climate change is:
(A) WHO
(B) UNEP
(C) IPCC
(D) WWF
20. : Which term refers to gases trapping heat in Earth’s atmosphere?
(A) Ozone shield
(B) Greenhouse effect
(C) Acid rain
(D) Photochemical smog
21. : Carbon trading is a market-based approach to:
(A) Increase fossil fuel use
(B) Allow buying and selling of emission credits
(C) Reduce biodiversity
(D) Increase carbon dioxide emissions
22. : Permafrost thawing due to climate change releases which potent greenhouse gas?
(A) Nitrous oxide
(B) Oxygen
(C) Methane
(D) Sulfur dioxide
23. : Global warming can cause coral bleaching due to:
(A) Ocean acidification and rising sea temperatures
(B) Oil spills
(C) Reduced fishing activities
(D) Increased oxygen levels
24. : Which phenomenon is directly linked to rising global temperatures?
(A) El Niño and La Niña intensification
(B) Polar vortex stability
(C) Increased volcanic eruptions
(D) Tectonic activity
25. : The ultimate goal of global climate agreements is to:
(A) Stop all development
(B) Limit greenhouse gas emissions and ensure sustainable development
(C) Promote fossil fuel consumption
(D) Reduce renewable energy use