Use what you learned about the relationship among gravity, mass, and distance to form sentences.
The force of gravity decreases
caused by gravity affecting mass.
Mass is
the amount of matter in an object.
The force of gravity increases
when distance increases.
Weight is
when an object's mass increases.
-
Intro

Mass is the amount of matter in an object

currents is the correct answer.

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.