Question

Sun, Moon, Earth Unit Test

Answer 1

Answer:

Last answer

Explanation:

The first 3 answers can be thrown out by process of elimination.

Answer 1 can't be right because no human has been on Mars.

Answer 2 can't be right because the space shuttle launch came after the last humans were on the moon.

Answer 3 can't be right because again the space shuttle didn't come around until long after the last human was on the moon.

So the only possible answer has to be the last.