What report after the 1890 census surprised americans? a: there were no more buffalo—all of them had been hunted and were now extinct. b: there were no more native americans—they had all moved to mexico or canada. c: there was no more frontier—all the habitable places had people living there.

1) d

2)c

3)b

4) a

5)c

6) c

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.