WATER EVERYWHERE AND WATER CYCLE

Which process is most important to the water cycle?

• Flooding

• evaporation

• erosion

• farm irrigation

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NGSS.MS-ESS2-4

During the water cycle, when water vapor changes to liquid water, it is called

• evaporation

• freezing

• condensation

• boiling

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Which two physical changes are essential processes in the water cycle?

• oxidation and reduction

• evaporation and condensation

• mixing and separating

• ebbing and flowing

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NGSS.MS-ESS2-4

Which of these would MOST LIKELY occur if the rate of evaporation over the ocean were to decrease for an extended length of time?

• The sea level would fall dramatically.

• Ocean currents would reverse their directions.

• The amount of precipitation on land would decrease.

• Harmful chemicals would be formed in the atmosphere.

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Water on Earth is found naturally as a solid, a liquid, and a gas. Where is MOST of the solid water of Earth?

• deep in Earth’s mantle

• in Earth’s polar regions

• in the outer atmosphere

• at the bottom of the ocean

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NGSS.MS-ESS2-4

In which stage is cool air causing water to condense?

• Stage 1

• Stage 2

• Stage 3

• Stage 4

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In the water cycle, energy from the Sun causes water to

• condense

• evaporate

• freeze

• sublimate

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How does water return to Earth from the atmosphere in the water cycle?

• precipitation

• runoff

• water vapor

• transpiration

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NGSS.MS-ESS2-4

Groundwater is part of the water cycle because

• it is surface water

• it collects precipitation and eventually returns it to surface waters

• it does not evaporate easily

• it becomes precipitation when heated

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About what percentage of Earth’s water is found in the oceans?

• 97%

• 71%

• 17%

• 7%

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