This homework is confusing and and a lot of nonsense, please help me, brainliest will be given (this is mean to be Ethics but they don't have that choose)

1) what is the most likely number of aliens' civilizations in the Milky Way that could communicate with us?

2) how far away could the nearest aliens be?

3) Answer the following:
“We have seen no evidence of alien life, so there are no other civilizations in the universe other than ours.’’ Do you agree?

If you heat soup on a stove, what happens to the movement of the soup’s particles? a. the particles move slower. b. the particles move faster. c. there’s no change in the speed of particles. d. the particles stop moving.

The tea party movement is a. an official third party that challenges both democrats and republicans in national elections. b. an organized challenge to incumbents in the republican party by the most conservative wing of the republican party. c. an organized challenge to incumbents in the democratic party by the most liberal wing of the democratic party. d. an offspring of the green party that runs for state and local office in many midwestern states. e. the now defunct party that gave way to the republican party at the end of the “second party system.”

Which is relatively better: a score of 76 on a psychology test or a score of 22 on an economics test? scores on the psychology test have a mean of 90 and a standard deviation of 13. scores on the economics test have a mean of 52 and a standard deviation of 10.