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WBCS Main Examination 2023 — Paper IV: General Studies II · Question 31 of 200

Q31
General ScienceEnvironment & Ecology
The following layer is also called the hot layer of the atmosphere :
  1. a.Troposphere
  2. b.Stratosphere
  3. c.Mesosphere
  4. d.Thermosphere

Answer: (D) Thermosphere

In the thermosphere, absorption of high-energy solar radiation raises temperatures to well over 1000 °C, so it is called the hot layer. Temperature falls with height in the troposphere and mesosphere, and the stratosphere warms only moderately because of ozone.

Q30 Whole paperQ32
The following layer is also called the hot layer of the atmosphere : — WBCS Main Examination 2023 Q31 | Prostuti360°