Why are high altitude clouds always so thin?
A) Air layers are unstable there.
B) Air layers are stable there.
C) Not enough particulates are present.
D) Very little water vapor is present.
E) Winds are faster at high levels.
D
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A wave-built platform is one in which sediment eroded from sea cliffs is transported seaward until it is
deposited at the edge of the wave-built platform. Indicate whether the statement is true or false.
How has converting forests to mostly paved urban areas changed the streams and rivers in the affected watersheds?
A) Flooding has decreased. B) Infiltration shifts to runoff. C) Evaporation has increased. D) Levels of water flow and pollution have decreased.
Which of the following is not generally correct regarding the basal layer of a glacier?
A) It can extend tens of meters above the ground surface. B) It tends to flow more slowly than the overlying parts of the glacier. C) It contains more debris than other parts of the glacier. D) Crevasses form in this region of the glacier.
Which of the following is the Brønsted-Lowry definition of a base?
A) a hydroxide ion acceptor B) a proton acceptor C) a proton donor D) none of these