________ is a weak acid that reacts to the mineral calcite
A) Carbonic acid
B) Nitric acid
C) Sulfuric acid
D) Acetic acid
Answer: A
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A student scoops a bucket of water and sediment from the side of a stream. A second student scoops a bucket of water and sediment from the center of the stream. What is the most probable outcome?
A) The first student would have large rocks and boulders because the stream flow sweeps these out of the way and to the sides. The second student might have small rocks and pebbles because the stream wears the rocks down where it flows quickly in the middle. B) The first student would have mud and small rocks because the stream flows slowly at the sides. The second student might have mostly mud because mud settles to the bottom. C) The first student would have mud and small rocks because the stream flows slowly at the sides. The second student might have large rocks and pebbles because the stream probably flows more quickly in the middle. D) The first student would have mud and medium-to-large size rocks that get stuck in the mud at the sides. The second student might have pebbles.
A rock will preserve its remnant magnetism as long as it is not heated above the Curie point. Indicate whether the statement is true or false
What is the calcium carbonate compensation depth?
A) The depth at which calcium carbonate begins to precipitate into a solid. B) The depth at which a calcareous ooze can start forming. C) The depth at which calcium carbonate starts to dissolve. D) The depth at which seawater becomes less acidic.
Hurricane-generated tornadoes
A) are most common in the left-forward quadrant of the hurricane. B) are formed in part by the force of friction on the hurricane's winds. C) typically last longer than other types of tornadoes. D) cluster around the center of the hurricane.