Why were so few books available during the Middle Ages? Most people could not read.
Most people didn't have the time to read. There wasn't enough ink and paper.
Most people were too poor to buy them.

Few books were available in the middle ages because there was no such thing as printing back then and all books were handwritten,

Explanation:

causing them to cost more because of the amount of labor being put forth to create them. Writing books by hand doesn't really sound like a fun job lol so there were limited amounts of books made because there were so few people writing them

the telephone is the answer

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.