Which of the following statements about the asthenosphere is not true?
a. It lies beneath the lithosphere.
b. It is a rigid rock layer.
c. It behaves plastically.
d. Partial melting within it generates magma.
e. It is surrounded by the upper mantle.
B
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Since the equator-to-pole temperature contrast is the major cause of atmospheric circulations, you would expect wind speeds to be slowest in the:
A) autumn. B) winter. C) spring. D) summer.
If the larger sphere represented S2-, the smaller sphere might represent which of the following?
A) K+ B) O2- C) Mg2+ D) Al3+
On this map of southeastern Asia and adjacent areas, which site would have earthquakes along a mid-ocean ridge?
A. 1, in the Indian Ocean B. 2, in Tibet C. 3, near Japan D. 4, near the Tonga island arc
Which of the following is not one of the levels of the Linnaean Classification Scheme?
a. phylum d. kingdom b. order e. cohort c. species