Question

Which of the following is the layer of the Earth’s atmosphere in which weather occurs?
A. Stratosphere
B. Troposphere
C. Thermosphere
D. Mesosphere

Answer 1

Hint: The atmosphere is composed of layers based on temperature. These layers are troposphere, stratosphere, mesosphere and thermosphere. A further region of about 500km above the Earth’s surface is called the exosphere. Moreover, the weather occurs in the lowest layer of the atmosphere.

Complete step by step answer:
The troposphere is the layer in which the weather occurs. The water vapor plays an important role in producing many weather systems and this water vapor is mostly confined to the lowest layer of the atmosphere called the troposphere. Therefore, all weather phenomena occur in the troposphere.
Further, this layer starts at the surface of the Earth and goes up to a height of $7-20km$.This layer consists of water vapors and mature particles. The temperature decreases at the rate of $1^{\circ }C$ for every 165m of height.
Moreover, this layer consists of $75\mathrm{\%}$ of the air in the atmosphere and most of the clouds appear in this layer because $99\mathrm{\%}$ of the water vapor is found here.

Hence the correct option is B

The layers of atmosphere is as shown:

Note: In either space or time the troposphere is not constant. The troposphere is 10 miles from the equator and is 5 to 7 miles from the poles. Moreover it does not contain ozone. The troposphere contains approximately $$99\mathrm{\%}$$ of the water vapor in the earth’s atmosphere.