Volcanoes form above subduction zones because ________
A) the lithosphere thickens above the subducting lithosphere and causes volcanoes to form
B) the subducting lithosphere melts as it descends and the magma rises to form volcanoes
C) water is squeezed out of the subducting slab and the water triggers melting of the overlying asthenosphere
D) the asthenosphere is displaced by the subducting lithosphere and rises to the surface to form volcanoes
C
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What pattern is most likely associated with clear skies and fair weather?
A) high pressure regions B) low pressure regions C) a cold front D) a warm front
Because water is 13.6 times less dense than mercury, an atmospheric pressure of 76 cm (30 in.) of mercury would be equivalent to 1034 cm (408 in.) of water. Therefore, a water barometer resting on the ground near sea level would have to be read from a ladder over ____ tall.?
a. 5 m (16 ft) b. ?10 m (33 ft) c. ?15 m (49 ft) d. ?20 m (66 ft) e. ?25 m (82 ft)
High pressure areas occur when
A) cold air sinks or hot air rises. B) wind blows. C) cold air sinks. D) hot air rises.
The body contains a large amount of inorganic phosphate, Pi. What is the effect of inorganic phosphate on the cleavage of glucose from glycogen?
A) It favors the cleavage reaction and promotes glycogen degradation. B) It represses the cleavage reaction and prevents glycogen degradation. C) It speeds up the conversion of glucose to glycogen. D) It speeds up the conversion of glycogen to glucose.