A rock that is 20 million years old comes from the ________ Period
A) Miocene
B) Paleogene
C) Tertiary
D) Paleocene
Answer: C
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Why is the atmosphere such a convenient medium for disposal of wastes?
A) The atmosphere is very dynamic, so it readily dilutes and transports wastes from their sources. B) Reactions in the atmosphere readily break down most pollutants. C) The atmosphere is largely unused by humans, so is a good medium in which to dispose of wastes. D) The atmosphere adapts to increased pollution emissions, so has been able to keep pace with industrialization and urbanization.
The Northern Hemisphere polar jet stream migrates southward in winter and northward in summer
Indicate whether the statement is true or false
Gray water is ____.
A. used water from showers, sinks, dishwashers, and tubs B. water that has been used for irrigation C. water that can never be used again D. water that is not needed E. water that comes from the faucet
Earthquakes occur at subduction zones, but volcanoes do not because the subducted lithosphere is pushed deep into the mantle.
Answer the following statement true (T) or false (F)