What did the study in a Pennsylvania forest reveal about the environmental effects of using DDT?
Answer: Out of all the options presented above the one that best represents what the study in a Pennsylvania forest reveal about the environment effects of using DDT is answer choice C) DDT killed ladybugs, which caused the aphid population to rise.
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Dinastía Han. Dinastía Imperial china (206 a.n.e.-220), fundada por Liu Bang (cuyo título Imperial fue Gaozu), un humilde soldado de fortuna que llegó a ser duque de pei, después príncipe Han y por último (206 a.n.e) emperador de China. Los Han lograron hacer China un poderoso estado unificado.
The 24th Amendment prohibited poll taxes or other taxes as qualifications for voting.
Poll taxes had been a way states had discriminated against black voters, by using their lower income status and poll taxes as a way to prevent them from going to the polls. During the civil rights movement of the 1950s and 1960s, this was challenged. The 24th Amendment, ratified in 1964, said: "The right of citizens of the United States to vote in any primary or other election for President or Vice President for electors for President or Vice President, or for Senator or Representative in Congress, shall not be denied or abridged by the United States or any State by reason of failure to pay any poll tax or other tax," and added: "The Congress shall have power to enforce this article by appropriate legislation."
2.David
He liked to write poems and played the harp.
