Climate Change MCQs Set 17 (200+ Questions with Answers) Posted on March 22, 2026March 23, 2026Author agropublishers 0 Climate Change MCQs Set 17 (200+ Questions with Answers) 1. What is the primary role of negative feedback in the climate system? Stabilizing the climate system by counteracting changes Accelerating ice melting Increasing climate variability Amplifying warming trends 2. Which statement best describes methane (CH₄) in the climate system? A gas with no significant contribution to global warming A low global warming potential gas with a long atmospheric lifetime A high global warming potential gas with a relatively short atmospheric lifetime A gas emitted exclusively from natural sources 3. The Antarctic Circle is located at approximately ___________ latitude 66.5° N 23.5° S 66.5° S 90° S 4. Within the normal physiological range, the rate of photosynthesis generally doubles with approximately every ______ increase in temperature 15°C 5°C 20°C 10°C 5. Tropospheric ozone (O₃) acts __________ in the climate system As both an air pollutant and a greenhouse gas Has no significant environmental role Solely as an air pollutant As a greenhouse gas 6. In atmospheric science, aerosols are best defined as ______________ Liquid droplets are present only within clouds Radioactive components in the atmosphere Suspended solid or liquid particles affecting radiation balance Gaseous emissions only 7. Global Warming Potential (GWP) is a metric used to quantify ___________ Relative heat-trapping ability of greenhouse gases over a specified time horizon Total global carbon emissions Changes in atmospheric pressure Absolute increase in global temperature 8. Which climatic zone lies between 0° and 20° latitude? Temperate Tropical Subtropical Polar 9. Precision fertilizer application helps reduce N₂O emissions True False 10. The average atmospheric lifetime of methane is approximately _____________ 1–2 years 9–12 years More than 100 years 50–70 years Loading … Question 1 of 10 Climate Change MCQs Set 17 (200+ Questions with Answers)
