The Post Oak Savanah ecoregion of Texas was named for the groups of oak trees that stretched across parts of the grassland. Which statement best describes how these groups of oak trees affect erosion in the area?
A.
They increase water erosion by absorbing water from the soil.
B.
They decrease water erosion by limiting the growth of grasses.
C.
They increase wind erosion by deflecting the wind.
D.
They decrease wind erosion by blocking the wind.