Because the climate of a region slowly changes and tectonic adjustments slowly occur, the landscape
A) is constantly at a threshold condition.
B) is continuously adjusting to new conditions that develop.
C) is usually in a state of dynamic equilibrium.
D) is constantly at a threshold, continuously adjusting, and in a state of dynamic equilibrium.
E) is continuously adjusting, and in a state of dynamic equilibrium, but not constantly at a threshold.
E
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Two identical arrows, one twice as fast as the other, are fired into a bale of hay. The faster arrow penetrates the bale
A. more than four times as far as the slower arrow. B. twice as far as the slower arrow. C. four times as far as the slower arrow. D. the same distance as the slower arrow.
What is the most populous country of Southeast Asia, with 240 million people?
A) Cambodia B) Indonesia C) Myanmar D) Philippines E) Singapore
The half-life of a radioactive isotope does not vary
Indicate whether the statement is true or false
Which of the following geologic observations would not bear directly on working out the sequence of geologic events in an area?
A) inclusions of sandstone in a granite pluton B) the feldspar and quartz contents of a granite C) an unconformity between a granite and sandstone D) a well-exposed dike of basalt in sandstone