It’s always depends on the mass/weight of the rock heavier goes faster and the lighter goes slower (but if they are roughly the same size there is no dramatic change in speed)
Coastal regions and Peary land
Answer:
3.) Pumice
Explanation:
"Pumice is widely used as an abrasive in soaps and cleaners. It is considered one of the softest abrasives on earth."
The lithosphere is less dense
