What is the ultimate cause of mass wasting?
a. water
b. slope
c. earthquakes
d. gravity
e. wind
D
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Even if populations continue to increase over the next 50 years, fresh water per capita should remain stable. (T/F)
a. true b. false
What event triggered the main eruption of Mount St. Helens in May 1980?
A) Melting snow caused a huge steam eruption. B) Magma encountered groundwater and exploded. C) A landslide removed rocks and released pressure on the magma. D) All of these are correct.
Which of the following represents chemosynthesis?
A) carbon dioxide + water + hydrogen sulfide ? sugar + sulfuric acid B) nitrogen + carbon dioxide + energy ? methane + oxygen C) glucose + oxygen ? water + carbon dioxide + energy D) water + carbon dioxide + energy ? glucose + oxygen + water E) glucose + water ? methane + carbon dioxide
A lee-side low forms
a. over the central Pacific Ocean. b. near the equator. c. on the upwind side of a mountain. d. on the downwind side of a mountain. e. over the Atlantic Ocean.