Why are asteroids mostly irregular in shape? because their gravity pulls everything

Answer : Because they have less mass than planets and therefore less gravity

There are two main reason asteroids are formation of smaller rocks in space bound together and as they increase in mass and size, they also produce gravitational force but a lot less than planets, with such little gravity the same principle on planets where the heavier materials are closer to the core does not apply to asteroids, as such the surface is not compacted. Also the surface experience collisions with several other asteroids which produces the crater in them.

Because they have less mass than planets and therefore less gravity.

Abc

Explanation:

It's the alphabet