JEE Main · ChemistryMedium
What is the primary cause of the greenhouse effect in the Earth's atmosphere?
- A.Absorption of infrared radiation by greenhouse gases.
- B.Reflection of ultraviolet radiation by clouds.
- C.Scattering of visible light by atmospheric dust.
- D.Emission of X-rays from the sun.
Show correct answer & step-by-step solution
Correct answer: A — Absorption of infrared radiation by greenhouse gases.
Solution
- The Earth's surface absorbs solar energy and re-emits it as infrared radiation.
- Greenhouse gases like , , and absorb this infrared radiation.
- This trapped energy warms the atmosphere, leading to the greenhouse effect.
- Hence the answer is (A).
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