The answer is D. Gravity.
Gravity attracts objects to the surface of the Earth. Take a falling brick, for example, the brick has more mass, therefore, there is more attraction between the brick and Gravity. The brick is a solid object and is heavier as well.
Hope this helps! :)
They are all european mountain ranges
High Income ($11,500 or more)
32%=0.32=8/25
66%=0.66=33/50
75%=0.75=3/4
50%=0.50=1/2
:)
