Human Dependence on Ocean Systems

People depend on the oceans for __________________.

• Natural resources

• Food and water

• Transportation

• All of the above.

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NGSS.MS-ESS2-4

Fresh water can be produced by removing the salt from ocean water using a process called ______________.

• salt water cleanup

• water purification

• desalination

• wastewater treatment

How do the oceans contribute to the amount of Oxygen in the Earth's atmosphere?

• Fish in the ocean produce oxygen.

• Phytoplankton in the ocean produce oxygen through the process of respiration.

• Phytoplankton in the ocean produce oxygen through the process of phtosynthesis.

• There is no oxygen production in the ocean.

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The use of light energy by organisms to convert CO2 and H2O into organic molecules is

• chemosynthesis

• consumption

• photosynthesis

• decomposition

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Which of the following is NOT a source of pollution in the ocean?

• Fertilizers used on land.

• Sand drifting along the bottom of the ocean floor.

• Oils found on city streets.

• Emissions from gas-burning vehicles.

Tags

NGSS.MS-ESS3-3

Which piece of evidence BEST explains why trash has accumulated in the ocean?

• Humans manufacturing and quickly discarding plastic products has caused the garbage patches to grow.

• The best way to discard plastic trash is to dump it in the ocean.

• Only plastic that cannot be recycles is found in the ocean.

• Trash has not accumulated in the ocean.

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The best way to keep the ocean clean is to ______________________.

• skim trash regularly

• establish regulations for safety and environmental regulations

• stop using the ocean as a resource

• start a war to take over the ocean as our own resource

Tags

NGSS.MS-ESS3-3

What is a fertilizer runoff?

• When fertilizer runs into a body of water.

• When water makes fertilizer.

• When algae grows rapidly.

• The industrial production of fertilizers.

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What happens when a fertilizer runoff happens?

• Fish get bigger.

• Algae grow rapidly.

• The water becomes very clear.

• The oxygen level in the water increases.

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What happens to the fish if there is fertilizer runoff?

• The fish thrive because of increase in Nitrogen and Phosphorous.

• The fish die because of lack of oxygen.

• Nothing happens to the fish.

• The fish thrive because there is more algae to eat.

Tags

NGSS.MS-LS2-1

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