Oceanograpghy Study Guide

Question 0

Continental slope

Answer 0

A steeper drop off on the edge of the continental shelf

Question 1

Continental shelf

Answer 1

Part of the continent that is covered by water

Question 2

Continental rise

Answer 2

Sediments from a wedge at the base of the continental slope

Question 3

Abyssal plain

Answer 3

Large, flat, almost level area of the ocean floor

Question 4

Midocean Ridge

Answer 4

Underwater mountain ranges that run along the ocean floor

Question 5

Guyot

Answer 5

Flattopped, submerged Mt

Question 6

Seamount

Answer 6

Submerged volcanic mountain

Question 7

Trench

Answer 7

Long, narrow depression located in the ocean floor

Question 8

Name three examples of dissolved gases in the global ocean

Answer 8

N2, oxygen, nitrogen

Question 9

What are three ways that dissolved gases get into the ocean

Answer 9

1. Gases end of the ocean directly from the atmosphere
2. Gases under the ocean from streams and rivers
3. Some gases come from underwater volcanoes and marine organisms

Question 10

Cold or warm water allows more CO2 two escape from the ocean water

Answer 10

Warm

Question 11

Cold or warm water dissolves in traps more CO2 in the water

Answer 11

Cold

Question 12

The ocean is described as a carbon sink what does this mean?

Answer 12

It has the ability to dissolve a large amounts of CO2

Question 13

Define salinity

Answer 13

Salinity is the amount of salt dissolved in the ocean

Question 14

What two factors are greatly impact the salinity of ocean water

Answer 14

Evaporation and precipitation

Question 15

Excessive amounts of rain

Answer 15

Decreases salinity

Question 16

Lots of sun causing evaporation

Answer 16

Increases salinity

Question 17

Melting Glacier

Answer 17

Decreases salinity

Question 18

Area where a river dumps into the ocean

Answer 18

Decreases salinity

Question 19

What two factors affect the surface temperature of the ocean?

Answer 19

Depth and location

Question 20

An increase in the amount of salt in the water will_______ The density of the water. A decrease in the temperature of the water will_______ The density of the water.

Answer 20

Increase/increase

Question 21

What three factors affect surface currents?

Answer 21

1. Wind
2. Coriolis effect
3. Continental buriers

Question 22

Winds around the globe from an area of_____ pressure to an area of_____ pressure.

Answer 22

Hi/Lo

Question 23

Define the Coriolis effect

Answer 23

Apparently deflection of objects moving in a straight path

Question 24

What causes the Coriolis effect?

Answer 24

Earths rotation

Question 25

Define Gyre

Answer 25

Ocean currents

Question 26

Which direction do gyres flow in the northern hemisphere where we live?

Answer 26

Clockwise

Question 27

What two factors affect deep ocean currents

Answer 27

1. Temperature | 2. Salinity

Question 28

Define thermohaline circulation

Answer 28

Water movements driven by differences in density

Question 29

Deep ocean currents move_____ Dan surface currents do. Deep ocean currents of the Atlantic Ocean are_____ in temperature and have a_____ salinity.

Answer 29

Slower/warm/lower

Question 30

How do major surface currents affect local climates

Answer 30

They can make the temperature colder or hotter

Question 31

How does the Gulfstream affect the climate of Western Europe

Answer 31

It makes the temperature rise