Question

Discuss the characteristics of the troposphere and the role it plays in the maintenance of life on earth

Answer 1

Answer:

• It is the lowermost layer of the atmosphere.
• The height of this layer is about 18 km on the equator and 8 km on the poles.
• The thickness of the troposphere is greatest at the equator because heat us transported to great heights by strong convectional currents.
• Troposphere contains dust particles and water vapour.
• This is the most important layer of the atmosphere because all kinds of weather changes take place only in this layer.
• The air never remains static in this layer. Therefore this layer is called ‘changing sphere’ or troposphere.
• The environmental temperature decreases with increasing height of the atmosphere. It decreases at the rate of 1 degree Celsius for every 165 m of height. This is called Normal Lapse Rate.
• The zone separating troposphere from the stratosphere is known as tropopause.
• The air temperature at the tropopause is about – 80 degree Celsius over the equator and about – 45 degree Celsius over the poles. The temperature here is nearly constant, and hence, it is called tropopause.

Explanation:

Answer 2

Here is the answer:

Importance of troposphere to life on earth is -

The study of the troposphere is very important because we breathe the air in this layer of air.
The troposphere contains about 85% of the atmosphere’s total mass. Tropospheric processes, such as the water or hydrologic cycle (the formation of clouds and rain) and the greenhouse effect, have a great influence on meteorology and the climate.
The chemical composition determines the air quality. Certain components, even if they are only present in small amounts, may harm health and vegetation.
Therefore, it is of utmost importance to understand how the activities of humans influence the troposphere.

Pls mark me brainliest ❤️