Which of the following statements regarding water density is correct?
A) Adding dissolved substances increases the temperature of maximum density for water because the formation of less-dense ice crystals is suppressed.
B) Increasing the pressure decreases the temperature of maximum density for freshwater because the formation of bulky ice crystals is inhibited.
C) Decreasing amounts of dissolved substances inhibits the formation of hydrogen bonds, which restricts the number of ice crystals that can form.
D) Decreasing pressure increases the number of water molecules in a given volume and inhibits the number of ice crystals that can be created.
B
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When the magnetic field of Earth is reversed,
A. Earth flips over in its orbit. B. newly formed mineral grains on the ocean floor are magnetized according to the new orientation of the magnetic field. C. Earth's rotation is also reversed.
Name a sedimentary rock that will sequester CO2 in the geosphere
A) Conglomerate B) Shale C) Rock salt D) Limestone
Of the following statements about seawater properties in high and low latitudes, which is/are true?
-There is a thermocline in low latitudes. -There is a thermocline in high latitudes. -There is a halocline in low latitudes. -There is a halocline in high latitudes. -There is a pycnocline in low latitudes. -There is a pycnocline in high latitudes.
When subjected to a differential stress, a very "brittle" material, like glass, will ________
A) not bend at all. It will only break. B) flow under low to moderate stress conditions C) deform by breaking or elastic bending D) flow or shear if the stress is large enough