Which two factors affect the strength of the gravitational pull on two objects?
А
Mass and density
B
Weight and density
с
Weight and distance
D
Mass and distance
A

answer; ///i believe its: ///(embolus);

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b.have there own function.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.