INDIAN GEOGRAPHY

Detailed explanation-1: -The portion of the atmosphere which extends from the earth’s surface up to 6-8 miles and experiences decrease in temperature at a constant rate is the Troposphere.

Detailed explanation-2: -Stratosphere. The stratosphere is the second major strata of air in the atmosphere. It extends above the tropopause to an altitude of about 30 miles (50 km) above the planet’s surface. The air temperature in the stratosphere remains relatively constant up to an altitude of 15 miles (25 km).

Detailed explanation-3: -Temperature decreases with altitude because the troposphere is warmed from below, through absorption and re-emission of incoming solar radiation by the Earth’s surface, rather than being warmed from above by incoming solar radiation.

Detailed explanation-4: -They are: troposphere, stratosphere, mesosphere, thermosphere and exosphere. The troposphere is the lowermost layer of the atmosphere. Its average height is 13 km and extends roughly to a height of 8 km near the poles and about 18 km at the equator.