Why is upwelling important?

Upwelling provides nutrient rich water that sustains life

The salt content of a substance

Which of the following best describes what the pictured currents do? Options: carry warm water away from the poles, carry cool water toward the poles, carry warm water toward the equator, carry warm water away from the equator

carry warm water away from the equator

In the process of upwelling along ocean coasts, warm water at the surface is driven out to sea by blowing winds. What most likely happens to the cold water beneath it?

It rises to the surface to replace the warm water.

Which diagram correctly shows the flow of the water in a model of ocean currents created by heating the left side and cooling the right side of a long glass tank?

The diagram that illustrates the current of water flowing from the heated side to the cooled side.

The currents of the Earth's oceans are caused by

global winds and differences in temperature and salinity.

A student wants to make a model of ocean currents. She divides a long glass tank in half, as shown below. She puts fresh water in one side and salt water in the other side. Next, the student removes the barrier between the two sides. Which diagram correctly shows the flow of the water when the barrier is removed?

The flow of water will show the movement of fresh water and salt water mixing, demonstrating ocean currents.

Which is true? Options: The ocean has no effect on the temperature on the land. All ocean water is the same temperature. Ocean water does not move between locations. Ocean currents affect temperatures on land.

Ocean currents affect temperatures on land.

What causes water to rise to the top of the ocean?

It becomes less dense than the surrounding water.

What is one effect of the convection in the global ocean conveyor belt?

Water continually circulates throughout Earth's oceans.

How can the saltiness of the water cause the surface water to sink?

When some of the surface water freezes, the remaining water becomes saltier.

What most likely causes the current to behave as shown in the image? The image shows part of an ocean current in the Pacific Ocean. The blue line represents the motion of deep, cool water. The red line represents the motion of warm surface water.

When the water is heated, it becomes less dense and rises.

Cold water near the ocean floor often flows in deep-water currents. The cold water flows toward the deepest regions of the ocean because

it is more dense than the warm water above it.

Which diagram best represents the currents in the ocean?

The ocean contains currents as a result of uneven heating and uneven salt concentration. These currents exist both on the ocean surface and deep in the ocean.

Currents caused by differences in water density are most often the result of

differences in temperature and salinity.

Oceans Review Flashcards

Student preview

75 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is an Ocean?

Back

large body of water

2.

FLASHCARD QUESTION

Front

What % of the world is water?

Back

70%

3.

FLASHCARD QUESTION

Front

What type of water is in the Ocean?

Back

salt water

4.

FLASHCARD QUESTION

Front

Dark, but some fish live here: Twilight Zone, Midnight Zone, Abyss, Sunlight Zone

Back

Twilight Zone

5.

FLASHCARD QUESTION

Front

VERY Dark, not much life

Back

Midnight Zone

6.

FLASHCARD QUESTION

Front

The movement of deep, cold, nutrient filled water to the surface of the ocean is..

Back

Upwelling

7.

FLASHCARD QUESTION

Front

What affects the density of water? Salt, Temperature, The seasons of the year, Both A and B

Back

Both A and B

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