Which action would best help prevent groundwater erosion? A. using breakwaters B. packing down soil C. building drains with outlets D. increasing the slopes of riverbanks

What effect does plate tectonics have an organic evolution

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?