Answer:
B) Absence of native grasses
Explanation:
The grasses, which acted as a windbreak and whose roots anchored the soil in place, were overgrazed and/or removed to allow for farming. Once a few years of severe drought affected the area, any wind storm was able to blow the topsoil away, rendering the farm land of the Great Plains virtually unusable in many areas. Ground cover is an essential part of sustainable agriculture.
The disease caused by a uncontrolled division of abnormal cells in a part of the body!
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Animals use territorial behavior to adapt to new surroundings. it helps them stay stronger when they have to compete for food and it also helps with overcrowding and overpopulation
