one way precipitation is returned to surface and grounwater is via watersheds and river basins. generally a is larger than a . however sometimes these terms are used interchangeably. regardless, what is the main function of these drainage areas?

Watershed and then river basin

Explanation:

One way precipitation is returned to surface and groundwater is via watersheds and river basins. generally a watershed is larger than a river basin .

A watershed is much bigger because it includes deltas, basins, tributaries, and flood zones.

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.