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