A superior mirage is seen above its true position
Indicate whether the statement is true or false
TRUE
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Which of the half-reactions below would be complementary, balance the following half-reaction, and be chemically reasonable? Br2 ? 2 Br-
A. K ? K+ B. 2 K ? 2 K+ C. K ? K+2 D. K+ ? K E. 2 K+ ? 2 K
Water molecules can attach their positive sides against clay minerals because clay surfaces are also positively charged.
Answer the following statement true (T) or false (F)
A promising alternative to toxic pesticides used to reduce the billions of dollars in damage done by marine biofouling organisms is
A) marine predatory insects that eat the sessile biofoulers. B) polymers that make it difficult for the organisms to attach to a substrate. C) attracting fish to fouled sites to eat the fouling organisms. D) electrified ship hulls, intake pipes, and docks to electrocute the pests.
Cap-and-trade is a system that ________
A) permits industries that pollute at levels below the federal cap to sell credits to industries that pollute at levels above the cap B) rapidly brings pollution emissions to near zero for participating industries C) specifies a certain cap on industrial pollutants that can be traded to other nations D) allows industries to set their own levels for pollution emission so trading can continue E) has been repealed by Congress as useless in diminishing pollution