how does contour plowing in farming to prevent pollution?

a) contour plowing is used to treat pathogens in livestock waste.

b) contour plowing is used to reduce the amount of fertilizers used.

c) contour plowing is used to make insecticides less toxic.

d) contour plowing is used to reduce erosion and sediment pollution.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

the scientific method.