Multiple choice

The upper limit of the atmosphere can be drawn at a distance of

  1. 100.000 km

  2. 1.000 km

  3. 100 km

  4. 10.000 km

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The upper limit of Earth's atmosphere extends to approximately 10,000 km, which is about half the distance to the Moon. While the Kármán line (100 km) marks the boundary of space, atmospheric particles exist much farther out, gradually thinning until they merge with the solar wind.