Oceans Reviewer

How do nutrients, salt, sediment and pollutants get into estuaries and oceans?

• from rain falling over the estuaries and oceans

• from river flowing into estuaries and oceans

• from organisms decomposing in estuaries and oceans

• from shooting stars that fall to estuaries and oceans

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which statement correctly describes the relationship between nutrients and lifeforms in an estuary?

• When there are more nutrients, the number of life-form increases.

• When there are less nutrients, the number of life-forms increases.

• Nutrients do not determine the number of life-forms.

• Life-forms are not dependent on the nutrients available.

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NGSS.MS-LS2-4

NGSS.MS-LS2-1

What process is shown in the image?

• downwelling

• upwelling

• density current

• tide

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NGSS.MS-ESS2-6

Which gas serves as the energy source for organisms living in hydrothermal vents?

• carbon dioxide

• oxygen

• methane

• nitrogen

How do organisms at the bottom of the ocean get their energy to live?

• from the sun

• from the water temperature

• from hydrothermal vents

• from dead plants and animals

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NGSS.MS-LS2-3

Which organism is most abundant in the ocean?

• algae

• fish

• seaweed

• microbes

What will happen to the ocean life when phytoplankton disappear?

• All marine organisms will not live.

• All marine organisms will continue to live.

• All marine organisms will hunt for other food.

• All marine organisms will learn how to make their own food.

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS1-6

How does too much carbon dioxide affect the ocean and the marine life?

• Too much carbon dioxide in the ocean can cause it to become turbid (cloudy) which affects how marine organisms swim.

• Too much carbon dioxide in the ocean decreases the dissolved oxygen levels in water which harms marine life

• Too much carbon dioxide in the ocean can cause the water to be too cold, affecting the marine organisms

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

How is density current different from upwelling?

• Density currents are caused by the pushing of water; upwelling is

  caused by El Niño.

• Density currents are caused by El Niño; upwelling is caused by the

  pushing of water.

• Density currents are caused by differences in salinity and

  temperature; upwelling is caused when wind causes surface water to

  move away from shore.

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NGSS.MS-ESS2-6

Why is biological productivity greatest on the surface of the ocean?

• Because sunlight can reach it which allows photosynthesis to happen

• Because more predators are found on the surface of the ocean

• Because water is not too salty on the surface of the ocean

• Because water is colder on the surface of the ocean

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6