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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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
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