Consider the following statements regarding Troposphere 1 Thickness of the troposphere is greater at...........

Geography and Environment (RAS) World climates

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Consider the following statements regarding Troposphere:

1. Thickness of the troposphere is greater at the equator than at pole.

2. This layer contains dust particles and water vapour.

Which of the above statements is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Correct Option: (c) Explanation: Both statements are correct Supplementary notes: Troposphere The troposphere is the lowermost layer of the atmosphere.

Thickness of the troposphere is greatest at the equator because heat is transported to great heights by strong convectional currents. Its average height of troposphere is 13 km and it extends roughly to a height of 8 km near the poles and about 18 km at the equator. This layer contains dust particles and water vapour. All changes in climate and weather take place in this layer. The temperature in this layer decreases at the rate of 1°C for every 165m of height. This is the most important layer for all biological activity.