why does an air bubble rise to the surface of a glass of water

Answer 1

And your answer is?

Answer 2

It has less density

Answer 3

That's right. The lower density material USUALLY (but there are exceptions) floats on the higher density material. Exceptions are boats and such where the construction is designed to make more dense objects float by displacing a large volume of water.

Answer 4

thanks

Answer 5

it has less density