Question

What hits the atmosphere faster than 90,000 miles per hour
a.) comets
b.)meteors
c.)meteoroids

Answer 1

c.) meteoroids..........................

Answer 2

Meteoroids do ... thousands or millions of them every day.

A comet also would, but that would be a really big deal ... 
you don't want to know.  Fortunately, none of those have
happened in the past several million years.