Without any information i would say the industrial revolution and the pollution that occured because of it
Answer:
Two principal tactics are used in gerrymandering: "cracking" (i.e. diluting the voting power of the opposing party's supporters across many districts) and "packing" (concentrating the opposing party's voting power in one district to reduce their voting power in other districts). Gerrymandering means to draw congressional districts to the advantage of the political party that controls the State's legislature. This is a tactic that does not give equal representation to minority groups in the Congress.
Explanation:
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D) selecting random sample allows for a more representative sample in a survey.
Chlorine has the potential to break up the ozone layer (along with bromine)
