Answer:
A quick way of describing density is to describe an object as heavy or light for its size. Pumice stone, unlike regular rock, does not sink in water because it has a low density. An ironwood branch is very dense and sinks in water.
Hope that helps. x
Answer:
3.844 x 10 to the 5th power
Explanation:
Answer:
almost 100% positive its B but dont take me up on it
Your answer would be that Hubble categorized galaxies by their shape.