Gerald is lightheaded and tired from a lack of oxygen in his tissues.
what is most likely the reason he feels this way?
his plasma level is high.
his white blood cell count is high.
his platelet count is low.
his red blood cell count is low.

  His red blood cell count is low.

Explanation:

The red bloods cells transport the oxygen - hemaglobin throughout the body so if it is low then that produces symptoms of fatigue and dizziness or lightheadedness.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

the electromagnetic energy from the sun arrives in the form of visible and invisible light.