Question

Why is the mesosphere the coldest layer in the atmosphere?​

Answer 1

the air is much thinner (leas dense)

Step-by-step explanation:

as u go higher in thw mesosphere the air gets colder in the mesosphere than in the stratosphere

Answer 2

As you go higher in the mesosphere, the air gets colder. The air is much thinner (less dense) in the mesosphere than in the stratosphere below. There are fewer air molecules to absorb incoming electromagnetic radiation from the Sun. ... Carbon dioxide in the mesosphere also helps make this layer cold.