(a) The total amount of insolation received at the equator is roughly about 10 times that received at the poles.
(b) Infrared rays constitute roughly two thirds of insolation.
(c) Infrared waves are largely absorbed by water vapour that is concentrated in the lower atmosphere.
(d) Infrared waves are a part of the visible spectrum of electromagnetic waves of solar radiation.
Answer: (c)
Infrared waves, particularly in certain wavelength ranges, are indeed absorbed by water vapour that is concentrated in the lower atmosphere. This characteristic of water vapour plays a significant role in the Earth’s climate system and the greenhouse effect.In the lower atmosphere, where water vapour concentrations are typically higher, the presence of water vapour absorbs a significant portion of the infrared radiation. This absorption contributes to the warming of the lower atmosphere and helps regulate the Earth’s temperature. Water vapour acts as a positive feedback mechanism in the climate system, as increased temperatures can lead to more water vapour, which further enhances the greenhouse effect.
