Where is the top of the atmosphere?
A) 100 km above sea level
B) 21 km above sea level
C) 32 km above sea level
D) There is no defined upper limit to the atmosphere.

Question

Quizplus · Accepted Answer

There is no defined upper limit to the atmosphere, as it gradually transitions into the vacuum of space. However, the International Space Station orbits at an altitude of around 400 km above sea level, which is often used as a reference point for the edge of Earth's atmosphere.

Where Is the Top of the Atmosphere