Question

............... is the outermost layer of the atmosphere where it merges into .............. ​

Answer 1

Answer:

exosphere , it merges into interplanetary space.

Explanation:

In the case of bodies with substantial atmospheres, such as Earth's atmosphere, the exosphere is the uppermost layer, where the atmosphere thins out and merges with interplanetary space. It is located directly above the thermosphere. Very little is known about it due to lack of research.