Water Cycle and Air Pollution

When water is heated in the ocean by the sun and turns into water vapor

• condensation
• evaporation
• transpiration
• runoff

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After condensation, the droplets of water in the clouds fall to the earth in different forms

• precipitation 
• condensation
• evaporation 
• ground water

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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

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More evaporation occurs 

• at night 
• during the day 

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The ________ is the driving force of the earth's surface.

• sun
• moon 
• stars

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The water cycle has no start or end

• true
• false

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

• precipitation 
• evaporation
• condensation

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When water turns into a gas

• condensation 
• evaporation
• precipitation

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What is the water cycle?

• the 3 forms of water
• the movement of water on, above, or below the surface of the Earth
• when water melts
• when clouds form

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What part of the water cycle does this picture show?

• condensation
• precipitation
• evaporation

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