Climate Change MCQs Set-1 (200+ Questions with Answers) Posted on March 18, 2026March 31, 2026Author agropublishers 0 Climate Change MCQs Set-1 (200+ Questions with Answers) 1. Deforestation increases atmospheric CO₂ because it _________ Enhances rainfall Increases oxygen levels Decreases soil erosion Reduces carbon sequestration by plants 2. Among the major greenhouse gases, which one has the highest atmospheric concentration under current conditions? Nitrous oxide Carbon dioxide Ozone Methane 3. Which greenhouse gas contributes the most to global warming overall? Ozone Nitrous oxide Methane Carbon dioxide 4. Livestock contribute to climate change primarily through the emission of which greenhouse gas during enteric fermentation? Oxygen Methane Nitrogen Hydrogen 5. Methane (CH₄) is primarily produced from __________ Oceans Livestock digestion Sunlight Rocks 6. The primary driver of current climate change is _____________ Solar radiation Human activities Ocean currents Volcanic activity 7. The greenhouse effect refers to__________________ Trapping of heat in the atmosphere Cooling of the Earth Reflection of sunlight Ozone layer depletion 8. ________________ is the largest share of global CO₂ emissions Energy sector Industrial sector Transport sector Agriculture sector 9. Which of the following energy sources are classified as fossil fuels? Coal, oil, and natural gas Wood and charcoal Solar and wind energy Uranium 10. Which of the following activities is a major anthropogenic source of methane (CH₄) emissions? Mining Rice cultivation under flooded conditions Solar energy generation Transport Loading … Question 1 of 10 Climate Change MCQs Set-1 (200+ Questions with Answers)