T7L3 Quiz Flashcards

(34 cards)

1
Q

A large stream of moving water that flows through the ocean

A

A current

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2
Q

What are the two types of ocean currents?

A

1) Surface
2) Deep ocean

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3
Q

Surface currents are mainly driven by what?

A

Global winds and they are several hundred meters deep. They follow wind patterns in the five major oceans

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4
Q

What do global wind belts effect?

A

Surface currents

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5
Q

What are the 2 factors that create global wind belts

A

1) Uneven heating
2) Coriolis effect

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6
Q

Are the factors that create global winds the same factors that create surface currents?

A

Yes

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7
Q

warm/cold ocean currents pull water from the equator and move it pole/equator - ward. The cold water currents returns cold water to the poles/equator

A

warm; pole; equator

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7
Q

The redistribution of energy in the oceans results in _____ ocean temperatures

A

moderate

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8
Q

True or False?
The Coriolis Effect affects the ocean currents just like they do the air currents

A

True

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9
Q

In which direction do ocean currents rotate in the Northern Hemisphere?

A

Clockwise

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10
Q

In what direction do ocean currents rotate in the southern hemisphere?

A

Counterclockwise

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11
Q

What geographical formation halts the flow of ocean water, forcing them to find a new path?

A

Continents

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12
Q

What is a huge ocean current that brings warm water pole-ward?

A

The Gulf Stream

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13
Q

What does the Gulf Stream become which warms the United Kingdom?

A

The North Atlantic Drift

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14
Q

What type of weather does the North Atlantic Drift bring to Northern Europe?

A

This warm current brings warm weather and lots of rain

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15
Q

What would happen to the climate of northern Europe if this warm current didn’t pass by?

16
Q

The ocean currents that pass by San Diego are cold, so what type of weather do we experience?

A

cool and dry weather

17
Q

El Nino occurs every _____ years

18
Q

Where does El Nino take place?

A

The Pacific Ocean

19
Q

During El Nino, winds along the equator slow and being blowing where?

20
Q

During El Nino, the winds along the equator brings warm currents to where?

A

The west coast of North and South America

21
Q

What is the result of El Nino?

A

More precipitation in California

22
Q

Between 2015 and 2016, which two states experienced severe rain, snow, and flooding.

A

Texas and California

23
Q

What is La Nina?

A

Occurs when strong winds blow from east to west pulling even more warm weather away from the west coast

24
What is the result of La Nina?
Cold winters and more precipitation than normal
25
Deep Ocean currents are the movement of warm/cold water.
cold
26
Deep ocean currents are caused by what?
the differences in density of the ocean water
27
As warm water moves pole-ward it cools and begins to ______ because it becomes more dense. It also becomes more salty.
sink
28
What are the two reasons the water becomes saltier
1) ice formats, leaving salt behind 2) Water evaporating, leaving salt behind
29
True or False? Deep Ocean Currents are also affected by the Coriolis Effect
True
30
Are the Deep Ocean Currents fast?
No! They move slowly and can take 1,000 years to complete one full trip.
31
The deep Ocean currents move around the 5 oceans in how many directions?
One direction like a conveyor belt
32
Density is the driving force behind these currents. Density is driven by differences in what two factors?
1) Tempurate 2) Salinity
33
What are the two main contributions to life from the Deep Ocean Currents?
1) Circulate oxygen and nutrients 2) Transfer heat