Chemical weathering generally proceeds ________.
A. fastest in the intact interior of a rock body, where ions easily move short distances from grain to grain
B. along contacts between mineral grains
C. fastest on flat joint (crack) faces that are distant from any corners or edges
D. fastest at the tip of growing cracks deep within the rock
E. at about the same rate throughout a rock body
Answer: B
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Why is air pressure greatest at sea level?
A. Air pressure depends on the weight of overlying air molecules. B. Air pressure depends on the temperature of air and air near Earth's surface is warmest. C. Air pressure depends on the force with which air molecules strike Earth's surface; molecules near Earth's surface strike Earth with more force. D. Air pressure is inversely proportional to the density of air.
The ice that forms when supercooled water droplets come in contact with a cold surface is called _______________
Fill in the blank(s) with correct word
Where is most of Earth's freshwater found?
-as ice below Earth's surface -as ice at Earth's surface -as liquid below Earth's surface -as liquid at Earth's surface
The San Andreas fault in California is not a simple crack but ________.
A. exists as a single line of breakage along most of its length B. exists as a zigzag crack along most of its length C. shows little offset on the surface but greater offset below the surface D. is not connected to other fault systems E. a belt of broken and ground-up rock, usually 100 m or more in width