Earth rsquo s atmosphere consists of several layers Consider the following statements with reference...........

Geography Atmosphere

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Earth’s atmosphere consists of several layers. Consider the following statements with reference to it.

Assertion (A): Troposphere is the hottest layer of the atmosphere.

Reason (R): It gets more heat radiation from below, earth’s surface, as compared to other atmospheric layers.

In the context of the above, which of these is correct?

A is correct, and R is an appropriate explanation of A.

A is correct, but R is not an appropriate explanation of A.

A is correct, but R is incorrect.

Both A and R are incorrect.

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Explanation:

The troposphere is the lowest layer of Earth's atmosphere. The troposphere is heated from below. Sunlight warms the ground or ocean, which in turn radiates the heat into the air right above it. This warm air tends to rise. That keeps the air in the troposphere "stirred up". Air is warmest at the bottom of the troposphere near ground level. Higher up it gets colder. Nearly all of the water vapour and dust particles in the atmosphere are in the troposphere. That is why most clouds are found in this lowest layer, too. The thickness of the troposphere varies around the planet.