Are asteroids, comets, meteors, and meteorites composed of the same particles?

Comets, Meteors and Asteroids are made of different particles.
Comets are objects composed mostly of ice and dust that grow tails when they approach the sun. All comets have a nucleus, which is the hard rock/ice object. When a comet nucleus nears the sun, solar energy begins to heat the ice and vaporize it. The gas flies off the comet, sometimes violently enough to break the nucleus apart and throws dust up with it. The gases form a cloud around the nucleus called the coma.
Asteroids are rocky particles. They could be made of icy mantel or nickel-iron.
Meteors are fallen pieces of comets or asteroids, so they can be made of one of those.

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