They are mostly made of dust.
Mostly Meteors
Comets contain ice.
Rock, Ice, Dust
Yes. There were probably billions of meteors in the Jurassic period. Just as millions fall today. Although they are mostly about he size of a grain of sand.
They are mostly made of dust.
the hole made by meteors craters
Mostly meteors
This can vary a lot between different meteors; the main classification, if I remember correctly, is between "ice meteors" that are made up mainly of ice, and "rock meteors", out of rocky materials.
Meteors mostly come from comets. I mean "meteors" not meteorites. Meteors are the things that burn up as they streak across the sky. They aren't the things that land on Earth.
Mostly Meteors
Comets contain ice.
yes
Rock, Ice, Dust
Yes. There were probably billions of meteors in the Jurassic period. Just as millions fall today. Although they are mostly about he size of a grain of sand.
3478
Comets and meteors are made of rocks and boulders same as on earth. But since they are in space for a long time, they might have some differences, little differences.