Answer:
Density of Marble = 2711kg/m3
Density of Basket Ball = 0.6299Kg/m3
Explanation:
An object with twice as much mass will exert twice as much gravitational pull.
The marbel in this case have more mass than the basketball,and this happens to experience much gravitational pull.
It is a mountainous region were minerals are mined. Most of the countries people live there.