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Writing was Rachel Carson's greatest skill and Silent Spring was her most important contribution to the world since it launched the global environmental movement today. Carson worked to purge the United States of deadly pesticides like DDT that were used everywhere across the U.S. in agriculture and elsewhere.
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Answer:
many black people during that time were uneducated thus being the reason a literacy test was made to be taken. Many black people didn't have jobs or money so high poll taxes made it difficult for them to vote. And the grandfather clause allowed old rules to be imposed so it would be even harder for them to vote.
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