Answer:
'cause they were primitive
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We say that a single study proves a theory because those who are smart enough can get it done quickly, and we say that a single study disproves a theory because that means it makes them feel smart when we disprove someone very intelligent but also it's to make sure if nothing was done wrong
Answer: I think its B
Explanation: because if you wanted to build more houses you would need trees because you clear up some of the trees around you so you go to a new area and get more wood
C.segrigation
definition:the action or state of setting someone or something apart from other
people or things or being set apart
Is the same at every elevation.