How can people reduce wind erosion? a. none of the above b. let cows eat all the grass in a field c. plant trees around farmland d. plow fields after each harvest

i would say it is

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.