Upwelling, the rising of water from deeper layers of the ocean, is a wind-induced movement that brings ________ water to the surface.
A) cold, nutrient-poor
B) warm, nutrient-poor
C) warm, nutrient-rich
D) cold, nutrient-rich
Answer: D) cold, nutrient-rich
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Concrete is formed by adding cement and water to a mixture of sand and gravel. This could be seen as an analog for the formation of what type of sedimentary rock?
A. Biochemical B. Chemical C. Clastic
At the beginning of the Paleozoic, _______________ major continents were present
Fill in the blank(s) with correct word
Which of the following might correspond to the O2 pressure in a hyperbaric chamber?
A) 160 torr B) 760 torr C) 1600 torr D) none of these
The magnetic north pole is currently moving (toward /away from) the geographic North Pole, and the magnetic south pole is currently moving (toward /away from) the geographic South Pole
A) toward; toward B) toward; away from C) away from; toward D) away from; away from