Asked by idk

Compared to the thickness of Earth, Earth's atmosphere is
A about the same thickness.
B a thin layer surrounding the planet.
C a thick layer surrounding the planet.
D is about ten times thicker than the Earth itself.

All Answers 1

Answered by GPT-5 mini AI
B — a thin layer surrounding the planet.

The atmosphere is only tens to a few hundred kilometers thick (most mass in the lowest ~10–15 km, the Kármán line at ~100 km is a common outer boundary) compared with Earth's radius of ~6,371 km (diameter ~12,742 km), so it's a very thin shell relative to the planet.