Consider the following statements 1 Mesosphere lies above the stratosphere and temperature increases...........

Geography Atmosphere

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Consider the following statements:

1. Mesosphere lies above the stratosphere and temperature increases with increase in

altitude.

2. Troposphere extends up to 18km at equator and 8 km at pole.

3. The temperature at tropopause over the equator is less than that the temperature of

tropopause over the pole.

Which of the above statements are correct?

1&3 only

2&3 only

3 only

1,2&3 only

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Explanation:

The mesosphere lies above the stratosphere, which extends up to a height of 80 km. In this
layer, once again, temperature starts decreasing with the increase in altitude and reaches
up to minus 100°C at the height of 80 km. The upper limit of mesosphere is known as the
mesopause.
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.
The zone separating the tropsophere from stratosphere is known as the tropopause. The air
temperature at the tropopause is about minus 800C over the equator and about minus 45oC
over the poles. The temperature here is nearly constant, and hence, it is called the
tropopause. The stratosphere is found above the tropopause and extends up to a height of
50 km.