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Q19 (CAPF/2012) Environment & Ecology › Climate Change & Global Initiatives › Climate science and impacts Answer Verified

You placed a car in an open parking area in a summer day. After a few hours, you noticed that the heat is trapped inside the car. This phenomenon is known as

Result
Your answer: —  ·  Correct: B
Explanation

The phenomenon of heat being trapped inside a parked car on a summer day is a classic example of the greenhouse effect. Solar radiation from the sun, consisting of short-wave radiation, passes through the car's glass windows and is absorbed by internal surfaces like the dashboard and seats [3]. These surfaces then re-radiate the energy as long-wave infrared radiation (heat) [3]. Because glass is relatively opaque to these longer wavelengths, it prevents the heat from escaping, causing the internal temperature to rise significantly higher than the ambient outside air [4]. This process mirrors how greenhouse gases like carbon dioxide trap heat in the Earth's atmosphere, maintaining warmer temperatures than would otherwise exist [3]. While ozone depletion involves the penetration of harmful UV-B radiation, it is not the mechanism responsible for localized heating in enclosed spaces [5].

Sources

  1. [1] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 11: World Climate and Climate Change > Global Warming > p. 96
  2. [3] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 17: Climate Change > 17.2. GREENHOUSE EFFECT > p. 254
  3. [4] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 13: Our Home: Earth, a Unique Life Sustaining Planet > 13.4.1 Air, water, and sunlight > p. 218
  4. [2] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 13: Our Home: Earth, a Unique Life Sustaining Planet > A step further > p. 214
  5. [5] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 19: Ozone Depletion > tg.r. 7. Environmental Effects of Ozone Depletion > p. 271
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