Study the image about convection currents.

Question

convection currents. A trench is labeled on each side of the lithosphere. Points 1 to 4 are labeled. 1: Mantle. 2: Ridge. 3: Asthenosphere. 4: Outer core.

At which location does heat transfer begin as dense material heats up?

1
2
3
4

Answer 1

Heat transfer in convection currents begins in the mantle, specifically at point 1. The mantle is where dense material is heated up and begins to rise, leading to the convection currents that drive tectonic activity.