Discuss the geologic features that form when divergent plate boundaries occur in a
continental setting. What will be an ideal response?
The best example of a continental rift zone is the East African Rift. In this area, the
lithosphere has been thinned causing melting and volcanism. Normal faults commonly
occur in this environment. The crust is commonly elevated due to high heat flow. With
continued rifting the continental crust may be separated and a thin segment of ocean crust
may form.
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What do the Iraqi invasion of Kuwait in 1990 and the U.S. invasion of Iraq in 2003 have in common?
A) Both were unilateral actions. B) Amphibian forces were primarily used in each attack. C) Concerns over control of oil supplies in the Middle East were a major motive in both cases. D) Widespread famine occurred after each of these conflicts. E) Iraq won both conflicts.
A great circle:
a. cuts Earth into two hemispheres. b. is an exact circumference of Earth. c. provides the shortest routes of travel on Earth's surface. d. all of these
Ecosystem" is a _________ concept than "community" because it includes ________
Fill in the blank(s) with the appropriate word(s).
Electromagnetic energy can have a range of varying wavelengths across the ____
a. solar constant b. electromagnetic spectrum c. ecliptic d. electromagnetic longwave e. circle of illumination