Because of the larger frictional drag in water, ocean currents move ____ the prevailing winds above
a. more slowly than
b. faster than
c. at the same speed as
d. in opposite direction to
e. perpendicular to
ANSWER: a
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For the reaction 2 N2(g) + 3 H2(g) ? 2 NH3(g) which of the following can be determined using only the coefficients of the balanced chemical equation?
A) the number of molecules of NH3 obtained if 4.2 mol of N2 react completely to form NH3 B) the number of moles of NH3 obtained if 4.2 mol of N2 react completely to form NH3 C) both a and b D) neither a nor b
Which of the following is a hazard but not a risk, according to the textbook?
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What is the term that refers to all sediment deposited by running water?
a. mud b. talus c. regolith d. alluvium e. till
Based on human-induced changes to the atmosphere, some have tentatively labeled Earth's next atmosphere the
A) modern atmosphere. B) anthropogenic atmosphere. C) ozonosphere. D) pollution sphere. E) living atmosphere.