
Multiple Choice: For how long will signs of the the earlier Apollo missions (e.g., footprints, equipment, flag, etc.) be visible on the Moon’s surface?
A. 1-10 million years
B. 10-100 million years
C. 100-500 million years
D. More than 500 million years
Take a guess and then check your answer by going to the “Astronomy Question Answer Sheet” page.