Dive and Discover
“Sea Quiz #1” Answers

1. The East Pacific Rise is:
c) a mid-ocean ridge spreading center in the eastern Pacific Ocean.

2. A multibeam sonar is:
d) a sonar mounted on the hull of a research ship that emits many pings of sound to produce data to make seafloor maps.

3. The mid-ocean ridge is:
a) a plate boundary where Earth’s ocean crust is formed.

4. Global Positioning System (GPS) navigation uses:
b) several satellites that help determine the accurate geographic location of ships, planes, cars and people on Earth’s surface.

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