| 0/0 Level 1 |
Select a choice: +1 for a correct answer, -1 for a wrong answer. The correct answer appears here. |
How thick would the earth's atmosphere (100 km) be if the earth (R = 6,400 km) was the size of a basketball (r = 0.12 m)? | |
| 1.9 mm | |
| 1.9 cm | |
| 1.9 m | |
| 1.9 km |
