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  2. Clean Water Act - Wikipedia

    en.wikipedia.org/wiki/Clean_Water_Act

    The Clean Water Act was one of the United States' first and most influential modern environmental laws. Its laws and regulations are primarily administered by the U.S. Environmental Protection Agency (EPA) in coordination with state governments, though some of its provisions, such as those involving filling or dredging, are administered by the ...

  3. Fish - Wikipedia

    en.wikipedia.org/wiki/Fish

    These small fish maintain cleaning stations where other fish congregate and perform specific movements to attract the attention of the cleaners. [42] Cleaning behaviors have been observed in a number of fish groups, including an interesting case between two cichlids of the same genus, Etroplus maculatus , the cleaner, and the much larger E ...

  4. United States Environmental Protection Agency - Wikipedia

    en.wikipedia.org/wiki/United_States...

    Clean School Bus USA is a national partnership to reduce children's exposure to diesel exhaust by eliminating unnecessary school bus idling, installing effective emission control systems on newer buses and replacing the oldest buses in the fleet with newer ones. Its goal is to reduce both children's exposure to diesel exhaust and the amount of ...

  5. Indian Ocean - Wikipedia

    en.wikipedia.org/wiki/Indian_Ocean

    These phytoplankton blooms support the marine ecosystem, as the base of the marine food web, and eventually the larger fish species. The Indian Ocean accounts for the second-largest share of the most economically valuable tuna catch. [42] Its fish are of great and growing importance to the bordering countries for domestic consumption and export.

  6. Operation Crossroads - Wikipedia

    en.wikipedia.org/wiki/Operation_Crossroads

    Operation Crossroads was a pair of nuclear weapon tests conducted by the United States at Bikini Atoll in mid-1946. They were the first nuclear weapon tests since Trinity on July 16, 1945, and the first detonations of nuclear devices since the atomic bombing of Nagasaki on August 9, 1945.

  7. 1948 United States presidential election - Wikipedia

    en.wikipedia.org/wiki/1948_United_States...

    The 1948 United States presidential election was the 41st quadrennial presidential election.It was held on Tuesday, November 2, 1948. In one of the greatest election upsets in American history, [2] [3] [4] incumbent Democratic President Harry S. Truman defeated heavily favored Republican New York Governor Thomas E. Dewey, and third-party candidates, becoming the third president to succeed to ...

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