I just took a test in school today. What question was I asked?

Question I was asked: Swamp plants die, fall to the ground, and are buried by other dying plants. Approximately how long would it take for plants to possibly become a fossil fuel?


I just took a test in school today. What question was I asked?

Question I was asked: Scientists launch a rocket into space for a mission. Once the rocket escapes the gravitational pull of Earth, how will the mass and weight of the rocket be affected?


I just took a test in school today. What question was I asked?

Question I was asked:
Astronomical units can be used to measure distances between objects in outer space. One astronomical unit (AU) is the distance between Earth and the Sun. Based on this information, about how many astronomical units is Mars from the Sun?