Multiple Choice
If your ship is out in the middle of the North Pacific Ocean on the edge of the abyssal plain south of the Aleutian trench, how deep is the seabed if it took 6 seconds to get a bottom return from your 3500 kilohertz echo sounder? Use the equation: depth (m) = 0.5 * (1500 m/s * total 2-way travel time in sec)
A) 4500 metres
B) 1286 metres
C) 2625 metres
D) 6000 metres
Correct Answer:

Verified
Correct Answer:
Verified
Q4: Due to the advances in deep-towed echo
Q5: Where in the oceans are biologic communities
Q6: _ are underlain by about 500 metres
Q8: Why is the newly formed mid-ocean ridge
Q10: The chaotic accumulation of deformed sediments and
Q12: As a result of the 1831 expedition
Q13: Name three prominent, landforms found on the
Q14: How do guyots form?
Q79: Valleys that lead from the continental shelf
Q81: Submarine canyons form the deepest parts of