Which of these is an effect of nonpoint-source pollution on agricultural land? a. increased crop yield b. decreased groundwater contamination c. elimination of crop pests d. salinization of cropland it's d. salinization of cropland apex

What do science, technology, and disease have to do with each other?

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt