What is the name for the lowest layer of the atmosphere, which is most influenced by human activities?
a. terrasphere ub. stratosphere
c. mesosphere
d. troposphere
e. ionosphere

The name for the lowest layer of the atmosphere, which is most influenced by human activities is the troposphere. The correct answer is D.

The troposphere refers to the lowest layer of the atmosphere. Almost all the weather conditions take place in the troposphere; it is made up of 75 percent of the entire atmosphere mass.

Further Explanation

The Troposphere also contains 99 percent of the entire mass of water vapor and its height differs in trophic, middle latitudes and within the polar region in winter.

The height of the troposphere in the polar region in winter is 6km, which is 20,000 ft., the height of the troposphere in the middle latitudes is 17km, which is 56 000 ft., and its height in the tropics is 18km, which is 59,000 ft. Also, the entire height of the troposphere is 13km.

Within the troposphere, the area where friction with the Earth’s surface impacts airflow is known as the planetary boundary layer.

The deepness of the planetary boundary layer is usually 2 km. The tropopause can be found above the troposphere and it is the boundary between the stratosphere and the troposphere.

Therefore, the name for the lowest layer of the atmosphere, which is most influenced by human activities is the troposphere.

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