A)Water does not have all the necessary minerals a plant needs to grow.
B)Water neutralizes the pH of the soil.
C)The roots are deprived of oxygen.
D)Water supports the growth of root parasites.
E)Water lowers the water potential of the roots.

A)adjust the soil pH to 7.9
B)add clay to the soil
C)practise no-till agriculture
D)add fertilizer containing potassium, calcium, and magnesium to the soil
E)increase the number of sand particles in the soil

A)overgrazing by cattle.
B)clear-cutting of forest trees.
C)plowing of native grasses.
D)planting of field crops.
E)lack of soil moisture.