Question

station 3
which layer of earths atmosphere is the outermost and merges into space?
a. exosphere
b. thermosphere
c. mesosphere
d. stratosphere

Explanation:

The exosphere is the outermost layer of Earth's atmosphere and gradually merges into space. The thermosphere is below the exosphere, the mesosphere is below the thermosphere, and the stratosphere is below the mesosphere.

Answer:

A. Exosphere