Human Impact on Water STUDY GUIDE

What follows evaporation during the water cycle? How does this occur?

• Water evaporates into water vapor
• Water vapor condenses and forms a  cloud
• Water precipitates to the ground
• Water runs down into the hydrosphere

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When tiny droplets of water form in the air its called-

• precipitation 
• evaporation
• condensation

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Precipitation occurs because 

• the droplets evaporate in the air
• the droplets are too light for the air to hold
• the droplets are too heavy for the air to hold

Snow, hail, and rain are all examples of  ________________. 

• evaporation
• condensation
• accumulation
• precipitation

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What is it called when WATER transforms from a LIQUID to a WATER VAPOR or a GAS?

• EVAPORATION

• PRECIPITATION

• TRANSPIRATION

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Which stage does water try to return to a nearby river or lake, and eventually the ocean ?

• condensation

• evaporation

• precipitation

• run off

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Most of the world’s freshwater is trapped where?

• Glaciers and Ice Caps

• Lakes, Rivers and Streams

• Groundwater

• Atmosphere

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Humans use freshwater primarily for_________.

• Agriculture

• Drinking and Cooking

• Mining and Industrial Processes

• Electrical Production

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CHOOSE ALL THAT APPLY! Two critical plant nutrients in eutrophication are

• nitrates

• phosphates

• carbon dioxide

• dissolved oxygen

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In eutrophication, plant nutrients cause ________ to bloom.

• algae

• decomposers

• plants

• monkey fish

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