Which of the following are inorganic pesticides?

A. Carbon tetrachloride and ethylene dibromide
B. DDT and mothballs
C. A complex of chemicals from the chrysanthemum
D. Rotenone and nicotine
E. Arsenic, copper, and mercury


Answer: E

Environmental & Atmospheric Sciences

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Which of the following minerals contain independent silicon-oxygen tetrahedra in its lattice structure?

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There are two basic types of volcanoes, shield and composite cone.  Which of the following best describes composite cone volcanoes?

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