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LED bulbs use 85% less energy and last up to 25 times as long as incandescent bulbs.
Q17: Polyface Farm in the U.S.state of Virginia
Q18: Explain the following statement (quotation at the
Q35: Pesticides expand food supplies,raise profits,work fast,and are
Q37: Compared to synthetic pesticides,the use of natural
Q45: Some organisms live on or inside other
Q48: Damaging algal blooms occur annually in several
Q67: In addition to overuse of antibiotics for
Q75: In the early 1930s,the Great Plains experienced
Q76: Which country pays landowners to restore tree
Q100: The U.S.Environmental Protection Agency currently recommends that