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