Studying how people get along with one another
a. has little use outside the workplace.
b. won't a worker become more productive.
c. can improve a person's personal life.
d. for most people is a difficult thing to do.

all you have to do is look at the pictures to find hope this is the lesson you were also hope this .

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.