Which of the following conditions is associated with the polar front?
A. sinking air aloft
B. air divergence at the surface
C. clear skies
D. an elongated region of lower pressure
Answer: A
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Use your knowledge of plate boundaries to answer whether a volcano is likely or unlikely to form at the location of the red triangle.
A) Likely
B) Unlikely
A projectile is launched vertically at 50 m/s. If air resistance is negligible, its speed upon returning to its starting point is
A) less than 50 m/s. B) 50 m/s. C) more than 50 m/s.
What is the largest known reservoir of hydrocarbons on Earth?
a. Coal deposits b. Oil reserves c. Ethane pools d. Natural gas e. Methane hydrate
What kind of geologic feature is shown in this photograph?
A. desert pavement B. desert varnish C. contact metamorphism D. unconformity E. None of these choices are correct.