2nd one is the right answer
Water had the capability to hold up the thin overhang of the underground.
When water is depleted, there is nothing to support this overhang, which eventually led to the formation of sinkholes.
As for the collective behavior, it's all because of the scarcity. Water is one of human's basic needs to survive. When water is scarce, this will force the people to compete with one another to obtain it, which will cause the behavior
Nonpoint source pollution comes from several locations. If they cannot find the origin of the pollution it can be almost impossible to regulate. Or they may not have enough funding.
That would be an ionic bond. Which is an attraction between a cation and an anion.
Answer:
Explanation:Spontaneous generation is a body of thought on the ordinary formation of living organisms without descent from similar organisms. The theory of spontaneous generation held that living creatures could arise from nonliving matter and that such processes were commonplace and regular.
