Why do meteor showers occur?

Answer: Earth crosses comet debris trails

Gravity pulls asteroids to Earth yearly — Wrong. Gravity doesn't suddenly pull asteroids to Earth annually. Meteor showers occur because Earth's orbit crosses comet debris trails at the same time each year.

Stars shoot matter toward us — Wrong. Shooting stars aren't from stars. They're tiny particles (often comet debris) burning up in Earth's atmosphere at high speed.

Earth crosses comet debris trails ✓ — Correct! Comets leave debris trails along their orbits. When Earth's orbit intersects these trails, particles enter our atmosphere at ~70 km/s, heating and glowing—meteors! Showers occur annually (Perseids, Leonids, etc.) when Earth crosses the same comet paths. Multiple meteors appear from one 'radiant' point (perspective effect)!