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3. The ____ ocean is the largest and has the
greatest average depth.
1. The three major regions of the ocean floor
include continental margins, mid-ocean
ridges, and ocean _____ floor.
4. ____are long, narrow depressions formed in
the deepest parts of the ocean where plates
plunge back into the mantle
6. Isolated volcanic peaks on the ocean floor
are called ____.
8. _______ collect data about areas of the
ocean that were previously unreachable by
humans and can stay under water for long
periods of time.
12. The continental margin in the Pacific
Ocean includes volcanic activity, ______, and
plate interaction.
13. ___ is one type of technology scientists
use to measure ocean depth.
14. Manganese nodules are an example of
____ sediment.
17. Approximately 30% of Earth’s surface is
covered by _______?
2. _____ ooze is an example of biogenous
sediment.
5. ___ sediments consist primarily of mineral
grains that were eroded from rocks on land.
7. Manganese _____ are hard lumps of
manganese and other metals that precipitate
around a smaller object.
9. Approximately 70% of Earth’s surface is
covered by _______?
10. The three types of ocean floor sediments
include terrigenous, _____, and hydrogenous
sediment.
11. The four major oceans include the pacific,
Atlantic, Indian, and ______.
15. ___ and natural gas are the main energy
products currently being obtained from the
ocean floor.
16. The continental margin includes
continental slope,continental rise. and
continental _____.