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What's the Ocean Practice Questions

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Updated on Sep 26, 2011

Review the following concepts at: What's the Ocean Study Guide

Practice Questions

1. Use the conversion factor of 1 kilometer = 0.62 miles to calculate the approximate average depth of the world ocean in miles.

a.  0.06

b.  2.5

c.  1.2

d.  4

2. The geographical and geological feature of the ocean that can control sea level over long time periods is called which of the following?

a.  ridge

b.  continental shelf

c.  shelf break

d.  ocean abyss

3.  Which ocean is directly connected to more of the other oceans than any other ocean is?

a.  the Pacific Ocean

b.  the Atlantic Ocean

c.  the Arctic Ocean

d.  the Antarctic Circumpolar Ocean

4.  The shallow zone of the ocean around continents is called which of the following?

a.  ridge

b.  break

c.  slope

d.  shelf

5.  The two geographical parts of the ocean that are actually geological parts of continents are which of the following?

a.  shelf and ridge

b.  ridge and slope

c.  slope and shelf

d.  abyss and ridge

6. What are the two most abundant ions in the ocean?

a. sulfate and sodium

b. chloride and magnesium

c. magnesium and sulfate

d. chloride and sodium

7. One place in the ocean where the water is a bit less saline than the world average is which of the following?

a. the Arctic

b. the Mediterranean

c. the equator

d. deep water

8. The symbol for parts per thousand is which of the following?

a. °/0

b. °/00

c. °/000

d. °/0000

9. The difference between abundance of the phosphate ion in the surface water and the deep water is caused by which of the following?

a. regeneration by bacteria down deep and consumption by phytoplankton at the surface

b. consumption by bacteria down deep and regeneration by phytoplankton at the surface

c. regeneration by phytoplankton down deep and consumption by bacteria at the surface

d. consumption by bacteria down deep and regeneration by phytoplankton at the surface

10. Phytoplankton are which one of the following?

a. crustaceans

b. bacteria

c. benthic organisms

d. photosynthesizers

Answers

1. b. 2.5

2. a. ridge

3. d. the Antarctic Circumpolar

4. d. shelf

5. c. slope and shelf

6.  d. chloride and sodium

7. a. Arctic

8. b. °/00

9. a. regeneration by bacteria down deep and consumption by phytoplankton at the surface

10. d.

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