I need to know the answers for 8 and 9 asap

Streaks on the face of wave rock

It might. it might because if you think about if they discovered if we came from (lets say something funny like aliens) and thy found cells that matched and they would have t do more research about it but would most probably change their theory.

Your answer is water because there is combined mass of water found on, under, and over the surface of a planet. your answer is water.