Look at the value for formaldehyde that is associated with a 1 in 1,000,000 increased risk for cancer. How many times greater is the amount that is safe to inhale than this concentration?

i don't know. the other person does though.

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

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

answer; both surfaces of the membrane are nonpermeable