Question

question 3 not yet answered points out of 5 flag question what causes the convection currents in the mantle which keep the plates of our planet moving? select one: a. forces unknown to modem science b. plutonic movements associated with metabolism c. heat from radiation decay in the sun d. heat from radioactive decay in the earths core

Explanation:

The convection currents in the Earth's mantle are driven by heat. This heat comes from radioactive decay in the Earth's core. This heat causes the mantle material to become less dense and rise, then cool and sink, creating a cycle of movement that drives tectonic plate motion. Options a, b, and c are incorrect as they do not accurately describe the cause of mantle - convection currents.

Answer:

D. heat from radioactive decay in the Earth's core