A P-wave travels 48 km in 8 seconds. What is its velocity?

A) 6 km/s
B) 40 km/s
C) 56 km/s
D) 384 km/s


Answer: A

Environmental & Atmospheric Sciences

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The Orinoco Basin is largely located in which two nations?

A) Peru and Brazil B) Brazil and Venezuela C) Argentina and Brazil D) Colombia and Venezuela E) Colombia and Brazil

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On cold, dry winter nights, why is it common to experience below-freezing temperatures near the ground, and air more than 10°F warmer at your waist?

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Which of the features labeled on this figure is a kettle?



A) A
B) B
C) C
D) D
E) E

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