Answer:
A.Testable hypotheses
it makes the most sense out of the rest
I don’t have a complete answer but I’ll help u some. Building dams and rerouting rivers are two examples of ways humans directly impact water in watersheds. Humans also use water as a resource, drawing from watersheds for our drinking water. This does not have to be a negative impact, as water usage can be monitored so that it is sustainable. Hope this helped. ;)
The option that would most likely appear in an objective summary is A. <span>Christina Catnese argues that rain barrels are an easy, effective, and inexpensive way to conserve water.
This is the only objective summary among these examples - the other options show a subjective and personal opinion about something, which is not based on facts, but rather personal feelings. This is the reason why they cannot be objective.
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<span>it can form four covalent bonds it forms very strong bonds
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5 phagocytoses
3 MHC
1 T cell
4 invader
6 processes
2 B cell