At 10°C, which is more concentrated—a saturated solution of sodium nitrate, NaNO3, or a saturated solution of sodium chloride? (See figure shown above )
A) At 20°C a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl.
B) At 10°C a saturated solution of sodium chloride, NaCl, is more concentrated than a saturated solution of sodium nitrate, NaNO3
C) At 10°C a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl.
D) At 25°C a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl.
C
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Seismology has produced a great amount of information about:a
the mechanisms of plate tectonics. b. the physical and chemical state of Earth's interior. c. the causes of mountain building. d. earthquakes. e. all of the above
Several valley glaciers coalescing at the base of a mountain range form a(n)
A) ice cap. B) cirque glacier. C) piedmont glacier. D) tidewater glacier.
Judge the following sentence according to the criteria given below: Microscopic zooplankton are primary consumers BECAUSE they are incredibly abundant in the ocean
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.
Describe a microecosystem. How do plankton species interact in these microecosystems? What will be an ideal response?