The major batholiths of North America occur on which part of the continent?
A) Northern
B) Southern
C) Eastern
D) Western
E) Central
Answer: D
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You are hired by a pesticide company to determine whether its new pesticide ("Zap-em") is effective at controlling soybean aphids, an invasive species that costs American farmers millions of dollars a year in crop damage and control costs. Describe an
experiment you would perform to test the effectiveness of Zap-em. What will be an ideal response?
When caught in a thunderstorm in an open field, what action is best to take?
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Landslides and volcanic eruptions can cause a tsunami by
A. causing a large mass of rock to catastrophically displace the water. B. causing large winds and fast-moving pyroclastic flows. C. causing ground shaking. D. heating up the water, causing it to expand. E. forming large gas bubbles under water.
If a stream's velocity increases, its competence ________
A) remains unchanged B) increases by the same rate as the velocity increases C) decreases by the same rate as the velocity increases D) increases at a greater rate than the velocity increases E) decreases as a lesser rate than the velocity increases