The primary vertical motion of all ocean water is caused by ________
A) winds
B) density
C) earthquakes
D) currents
E) gravity
Answer: E
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In urban areas, an increase in impervious surfaces will cause ________
A) more precipitation to fall B) a decrease in runoff C) less precipitation to fall D) an increase in runoff E) does not influence water flow or precipitation
How many valence electrons are associated with the positively charged carbon in a carbocation?
A) 4 B) 6 C) 7 D) 8
In temperate oceans of the northern hemisphere during the summer months ________
A) nutrient concentrations are high, solar input is low, and dissolved oxygen decreases B) nutrient concentrations are high, solar input is high, and dissolved oxygen decreases C) nutrient concentrations are high, solar input is high, and dissolved oxygen increases D) nutrient concentrations are low, solar input is high, and dissolved oxygen decreases E) nutrient concentrations are low, solar input is high, and dissolved oxygen increases
An enzyme ________ a chemical reaction and ________ so it is ready to perform the reaction again.
A. initiates; provides the energy to put something together B. slows; is not consumed as it is used C. speeds up; organizes pieces together to form something different D. catalyzes; is not consumed as it is used