How many seconds would it take an echo sounder's ping to make the trip from a ship to the Challenger Deep (10,994 meters) and back? Recall that depth = 1/2 (1500 m/sec × Echo travel time).

A) 10.5 seconds
B) 14.66 seconds
C) 17.39 seconds
D) 22.67 seconds


Answer: B) 14.66 seconds

Environmental & Atmospheric Sciences

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The ________ and Fold were formed as a result of contact between the African, Arabian, and Eurasian plates at the center of the region

A) Atlas Mountains B) High Yemen Mountains C) Zagros Mountains D) Taurus Mountains E) all of the above

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Elevation variations in the land's surface might best be represented by a(n)

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Which one of the following principles of smart-growth will most likely result in less commuting for all residents?

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Environmental & Atmospheric Sciences