Unit 8: Oceanography

How does upwelling decrease the populations of some organisms?

• Upwelling moves everything from their normal habitats

• Upwelling makes the water a dangerous temperature

• Upwelling causes algal blooms that deplete oxygen

• Upwelling immediately brings in large fish populations

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which of the following would have been most regulated by the Water Quality Act of 1987?

• feed lots

• private homes

• paper mills

• grocery stores

Which brings oxygen to the deep ocean near the sea floor?

• organic matter releases oxygen as it decays

• oxygen is released in the deep ocean photosynthesis

• sinking water delivers oxygen from the surface

• deep sea hydrothermal vents release oxygen

Which two processes cause the most ocean surface salt variation?

• transpiration and precipitation

• precipitation and evaporation

• evaporation and condensation

• condensation and transpiration

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NGSS.MS-ESS2-4

Which property of water contributes most to the formation of horizontal ocean layers?

• density

• viscosity

• turbidity

• acidity

Which statement about the relationship between the ocean and atmosphere is most accurate?

• water currents do not affect the atmosphere

• air holds heat more efficiently than water

• water holds heat more efficiently than air

• water currents move faster than air or wind currents

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NGSS.MS-ESS2-6

NGSS.MS-ESS2-4

Which of these is a likely prediction based on the current trend in ocean temperature data?

• Evolution of coral reefs

• Bleaching of coral reefs

• Accelerated growth of coral reefs

• More fish action

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NGSS.MS-LS2-5

Mixing cold Arctic Ocean water with warm surface Atlantic currents causes what effect?

• Sinking of water as it circulates

• Reversal of current direction

• higher salinity and upwelling

• Rapid evaporation and acceleration of currents toward the pole

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NGSS.MS-ESS2-6

Some scientists predict that as greenhouse gases change the climate of Earth, the number and strength of hurricanes will increase. In order for this to occur, the climate change would have to affect Earth by changing the –

• Depths of the ocean.

• Speed of currents in the oceans.

• Chemical compositions of the oceans.

• Amount of dissolved oxygen in the oceans.

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NGSS.MS-ESS2-6

NGSS.MS-ESS3-2

Which of these events during a storm at sea can add oxygen from the atmosphere to ocean water?

• High winds

• Lightning

• Pressure change

• Temperature change