Change set

Pick exam & year, then Go.

Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q33 (CAPF/2024) Environment & Ecology › Climate Change & Global Initiatives › Climate science and impacts

Which one of the following statements with regard to greenhouse effect is correct?

Result
Your answer: —  Â·  Correct: C
Explanation

The greenhouse effect is based on the selective permeability of certain materials to different wavelengths of radiation. In a glass chamber, the glass is transparent to incoming short-wave solar radiation, which includes visible light and near-infrared wavelengths [1]. Once this energy is absorbed by internal surfaces like soil or plants, it is re-emitted as long-wavelength thermal infrared radiation [1][2]. Glass is relatively opaque to these longer wavelengths, effectively trapping the heat inside the chamber [1]. This mechanism is analogous to how greenhouse gases in the atmosphere, such as carbon dioxide and water vapor, allow short-wave radiation to enter but absorb and re-emit outgoing long-wave radiation, preventing it from escaping into space [2][4]. Consequently, the temperature inside the chamber or the lower atmosphere rises due to this trapped thermal energy [3][4].

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. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > Greenhouse Effect and Global Warming > p. 7
  3. [4] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 7: Climate Change > 2. greenhouse gases > p. 9
  4. [3] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 17: Climate Change > Role of Greenhouse Gases > p. 255
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
56%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

CDS-I · 2022 · Q20 Relevance score: 6.14

Which one of the following statements is true with regard to a greenhouse ?

IAS · 2025 · Q9 Relevance score: 3.61

Consider the following statements : Statement I : Circular economy reduces the emissions of greenhouse gases. Statement II : Circular economy reduces the use of raw materials as inputs. Statement III : Circular economy reduces wastage in the production process. Which one of the following is correct in respect of the above statements?

CDS-II · 2017 · Q14 Relevance score: 2.75

Infrared, visible and ultraviolet radiations/ light have different properties. Which one of the following statements related to these radiations/light is not correct?

CAPF · 2009 · Q84 Relevance score: 2.46

Consider the following statements : 1. The Earth receives the Suns energy at the infrared end of the spectrum. 2. The Earth re-radiates the Suns heat as ultraviolet energy. Which of the above statements is/are correct ?