How can a comet become the source of meteoroids and meteors?

Comets are made out of rock and ice, looking like dirty snowballs in space. The ice alone, is not only made of water, but also carbon dioxide, methane, and other things. As a comet approaches the sun, it melts and leaves behind bits of rock to orbit the sun. Soon earth will collide with its orbit and meteoroids and meteors form.

I really hope this helps!

I am quite sure that when a comet comes flying down to eart little chunks began to just come off or float away and meteoroids go where you can see it and meteors hit the ground