Quiz
The Ocean Floor
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Questions in this quiz (14)
1What percentage of water covers Earth's surface?
- A82%
- B65%
- C71%
- D55%
- E87%
2Global average depth is about how many feet?
- A12,000 ft
- B7,500 ft
- C10,000 ft
- D9,000 ft
- E15,000 ft
3What are the 3 major units of the seafloor?
- AContinental margins
- BOcean basin floors
- COceanic ridges
- DContinental shelf
- ETrenches
4The two types of continental margins are active and passive.
- ATrue
- BFalse
5These have relatively large shelves and no trench.
- APassive margins
- BActive margins
6What are the 3 basic parts of passive margins?
- AContinental shelf
- BContinental slope
- CContinental rise
- DContinental trench
- EContinental volcanoes
7These tend to have very narrow shelves (if any), and a trench.
- AActive margins
- BPassive margins
8Trenches are found along the margins of much of the ocean basin floor.
- ATrue
- BFalse
9The deepest trench, at almost 7 miles deep.
- AMariana Trench
- BPuerto Rico Trench
- CJava Trench
- DPhillipine Trench
- EJapan Trench
10Most of the ocean basin floor is called the abyssal plain.
- ATrue
- BFalse
11Seamounts are underwater volcanoes.
- ATrue
- BFalse
12Flat-topped seamounts are called...
- AGuyots
- BAtolls
13Roughly circular coral reefs produced when the top of a seamount drops below sea level are called...
- AGuyots
- BAtolls
14These are typically found in the center of an oceanic ridge, while the rest of the ridge is comprised of volcanoes and new oceanic crust.
- ARift valley
- BSeamounts
- CTrenches
- DDeep-sea fans
- EContinental margins
Information
- Description
- Quiz on The Ocean Floor, created by Katie Ray on 29/11/2014.
- Author
- Katie Ray
- Language
- English
- Views
- 6
- Rating
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