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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.
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
_______?
12. The continental margin in the Pacific Ocean includes
volcanic activity, ______, and plate interaction.
10. The three types of ocean floor sediments include
terrigenous, _____, and hydrogenous sediment.
13. ___ is one type of technology scientists use to
measure ocean depth.
11. The four major oceans include the pacific, Atlantic,
Indian, and ______.
14. Manganese nodules are an example of ____
sediment.
15. ___ and natural gas are the main energy products
currently being obtained from the ocean floor.
17. Approximately 30% of Earth’s surface is covered by
_______?
16. The continental margin includes continental
slope,continental rise. and continental _____.