Multiple Choice
What was the latest technologic addition to seafloor mapping, developed in response to mapping the ocean floor for national security, resource development, and directing seabed cable and pipeline crossings?
A) airborne sounding methods, by overflying the oceans
B) fleets of remotely telemetered, miniature drifter buoys
C) swath echo sounding by mechanical multi-beam sonar
D) walking it off one step at a time by the "Pirates of the Caribbean"
Correct Answer:

Verified
Correct Answer:
Verified
Q13: A(n)_ marks the site where old,oceanic lithosphere
Q111: What is the name of the valley
Q112: What is the magma source for mid-ocean
Q113: An echo sounder operates by measuring the
Q114: On active continental margins, at the toe
Q115: Graded bedding is _.<br>A)a Canadian quality-rating scale
Q117: You are doing a hydrographic survey by
Q118: Many of the seamounts form at or
Q119: Examine the words and/or phrases for each
Q121: Manganese nodules do not accumulate below 4500