An asteroid is hunks of rock or metal a comet is ice and as it gets closer to the sun it turns to water vapor as it gets further it turns back to ice.
No. Asteroids and comets have different compositions.
No. For one thing, Halley's comet is a comet, not an asteroid. The largest asteroid is Ceres, which is far larger than Halley's comet.
asteroid
no
Scientists usually refer to this as an asteroid, not a comet. It's the asteroid that caused the Chicxulub crater.
The Earth and the asteroid could be at a different points in the path.
Comet
the asteroid belt is safe for now long as there ere rouge comets comet comet clos to the belt
9P/Tempel or Tempel 1 is a comet, not an asteroid.
comet
comet
A comet or asteroid.