Climate Change MCQs Set 9 (200+ Questions with Answers) Posted on March 21, 2026March 21, 2026Author agropublishers 0 Climate Change MCQs Set 9 (200+ Questions with Answers) Top Climate Change Multiple Choice Questions Set 9 (High-Yield for Competitive Exams) 1. Nitrous oxide remains in the atmosphere for about ________ ~12 years ~114 years ~50 years ~200 years 2. Scientists use ice cores primarily to reconstruct ____________ Past atmospheric composition and climate Volcanic eruptions only Ocean salinity Soil fertility 3. Thawing permafrost contributes to climate change primarily by_____________ Absorbing CO₂ Increasing surface albedo Cooling the atmosphere Releasing methane and CO₂ 4. Globally, the largest source of anthropogenic greenhouse gas emissions is ___________ Agriculture Energy sector Transport Waste 5. Which climate mitigation option provides the most immediate reduction in radiative forcing? Methane reduction CO₂ capture Afforestation Soil carbon sequestration 6. Methane (CH₄) is considered a potent greenhouse gas primarily because _____________ It is abundant in the atmosphere It has a high global warming potential It reduces CO₂ levels It reflects solar radiation 7. Which of the following is a major and well-documented consequence of global warming? Decrease in global sea level Rise in global sea level Expansion of polar ice sheets Reduced global evaporation rates 8. Which of the following is a primary indicator of ongoing climate change? Stable global cooling Reduced atmospheric CO₂ Increasing glacier mass Rising global temperatures 9. Which gases are primarily responsible for the formation of acid rain in the atmosphere? SO₂ and O₃ O₂ and N₂ CO₂ and CH₄ SO₂ and NO₂ 10. Global warming potential (GWP100) of Nitrous oxide is approximately ___________ 1000+ 140-175 50-64 265–298 Loading … Question 1 of 10 Climate Change MCQs Set 9 (200+ Questions with Answers)