Question

why there were bubbles when some objects sank ? pls reply fast​

Answer 1

Answer:

its because of the density

Explanation: and what objects are u takling about

Answer 2

Answer:

Objects with tightly packed molecules are more dense than those where the molecules are spread out. Density plays a part in why some things float and some sink. Objects that are more dense than water sink and those less dense float. Hollow things often float too as air is less dense than water.