Question

the ______ is the coldest layer of the atmosphere.
a. troposphere
b. stratosphere
c. mesosphere
d. thermosphere
please select the best answer from the choices provided

Explanation:

The mesosphere is the layer of the Earth's atmosphere above the stratosphere and below the thermosphere. Temperatures in the mesosphere drop with increasing altitude, reaching extremely low values, making it the coldest layer of the atmosphere.

Answer:

C. mesosphere