Question

5 which process occurs in the mantle and is thought to be the force behind plate tectonics? a plate boundary b divergent boundary c normal fault d convection current

Explanation:

To solve this, we analyze each option:

• Option A: A plate boundary is where two tectonic plates meet, not a process in the mantle driving plate tectonics.
• Option B: A divergent boundary is a type of plate boundary (where plates move apart), not the driving process in the mantle.
• Option C: A normal fault is a type of fault (crack in Earth's crust with movement), not related to mantle processes driving plate tectonics.
• Option D: Convection currents in the mantle (due to heat from the core causing hot, less - dense mantle material to rise and cooler, denser material to sink) are the force thought to drive plate tectonics.

Answer:

D. convection current