HOW DO ASTEROIDS AND COMETS DIFFERS?

Answer 1

A comet is a large chunk of ice and rock (sometimes you can find iron there, too) with a large tail of ice. Comets are usually relatively small, and some can be formed from a collision between two asteroids. Comets, if they come in contact with Earth, usually are melted to pebbles from the atmosphere.

Asteroids, on the other hand, differ greatly in size. They can be as small as a pebble or as big as a city. They are what astronomers and scientists worry about the most. After all, a large enough asteroid destroyed the dinosaurs.

Asteroids have no tail of ice, and have no ice at all. They're made of solid rock and iron.

Asteroids and comets have many things in common. They're considered space debris from collisions. They smash into planets and cause impacts. They both are made or rock - and sometimes iron - and dance around through deep space doing nothing at all.