Voting
a. is the only legal form of political participation.
b. is the most recent form of participation arising in western democracies.
c. is a form of participation most heavily favored by the wealthy.
d. gives ordinary americans a more equal chance to participate in politics.
e. requires more knowledge and resources than litigation or lobbying.

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.