The start from an are of high concentration to an area of low concentration until it's evenly spread out
Wind, because the others can be completely used up at some point whereas wind will theoretically always be blowing
Answer:
silt 3
Explanation:
an aquaferis a rock layers that stores and allows the flow of groundwater
The answer for this question is C.
Answer:
In normal cells, the cell cycle is controlled by a complex series of signaling pathways by which a cell grows, replicates its DNA and divides. ... In cancer, as a result of genetic mutations, this regulatory process malfunctions, resulting in uncontrolled cell proliferation.