Climate Change MCQs Set 28 (200+ Questions with Answers) Posted on March 31, 2026March 31, 2026Author agropublishers 0 Climate Change MCQs Set 28 (200+ Questions with Answers) 1. Drainage of peatlands leads to ___________ Release of stored carbon as carbon dioxide through oxidation Net cooling due to increased albedo Increased atmospheric oxygen levels Enhanced methane absorption by soils 2. The ultimate products of methane oxidation in the atmosphere include ____________ Ozone only CO₂ and water Nitrogen and sulfur Hydrogen gas only 3. Which activity contributes to reducing greenhouse gas emissions through enhanced carbon sequestration? Afforestation and reforestation Expansion of industrial activities Deforestation and land clearing Fossil fuel combustion 4. Carbon dioxide (CO₂) emissions from cement production arise predominantly from ___________ Fuel combustion in kilns only Evaporation of water from raw materials Calcination of limestone Photosynthetic activity during processing 5. Major function of fossil fuels in the carbon cycle is ___________ Long-term carbon sinks Renewable water sources Primary nitrogen reservoirs None of these 6. Major sources of atmospheric methane (CH₄) include ___________ Wetlands Landfills All of these Livestock 7. Nitrous oxide (N₂O) emissions from soils are significantly enhanced by ___________ Solar radiation intensity Wind-driven processes Irrigation practices alone Excess nitrogen fertilizer application 8. The dominant anthropogenic source of nitrous oxide (N₂O) emissions is the ___________ Agricultural sector Industrial manufacturing Energy production systems Transport sector 9. Climate forcing agents in the Earth system include ___________ None of these Aerosols only Both greenhouse gases and aerosols influencing radiative balance Greenhouse gases only 10. Landfills act as major anthropogenic sources of ___________ due to anaerobic decomposition of organic waste Nitrous oxide from nitrification Carbon dioxide from combustion Oxygen from decomposition Methane from anaerobic microbial processes Loading … Question 1 of 10 Climate Change MCQs Set 28 (200+ Questions with Answers)