The selective removal or alteration of specific components of a rock that leads to its weakening is called
A. Chemical weathering
B. The rock cycle
C. Mechanical weathering
D. Abrasion
E. Sedimentation
Answer: A
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Eternal inflation refers to
A. the presence of a distinct beginning of time. B. the possibility that our universe is only a patch of a greater universe and that the process of universe spawning will continue forever. C. the observation that cosmic inflation could eventually curve back in on itself, causing its opposite: the compression of space. D. cosmic inflation inflating itself such that its own inflation is self-generating.
You are on a research cruise, and you leave Japan, heading east. At about 1500 kilometers east of Japan, you encounter a large volcanic plateau (Shatsky Rise) that is covered with sediments
You lower a piston core to sample the sediments, and the wire indicator says 2500 meters of water depth. What kind of sediment will the core likely contain? a) Lithogenous b) Hydrogenous c) Abyssal clays d) Carbonate ooze e) Siliceous ooze
Wood consumption by humans in developing countries is primarily used for ________
A) solid wood products B) fuel C) manufacturing homes D) building E) making paper
The "year without a summer" may have been caused by ____
A) soot from coal fires B) particulate matter and gases from volcanoes C) a dust cloud produced when a meteorite collided with Earth D) deforestation