Which layer of the atmosphere would an atmospheric scientist be investigating if the scientist were studying the formation of clouds?

The thermosphere is located above the mesosphere and extends to about 600 kilometers above the Earth's surface. It is characterized by extremely high temperatures due to solar radiation absorption. However, this layer does not support cloud formation or typical weather patterns, making it irrelevant for studies focused on clouds.

The stratosphere lies above the troposphere and extends from about 10 to 50 kilometers above the Earth. While it contains the ozone layer, which absorbs harmful ultraviolet radiation, it is generally stable and lacks the moisture necessary for cloud formation. Consequently, it is not the primary layer for cloud studies.

The mesosphere is situated above the stratosphere, extending from about 50 to 85 kilometers in altitude. It is known for its decreasing temperatures with altitude and is where meteors burn up upon entering the atmosphere. However, like the thermosphere, it does not play a significant role in cloud formation.