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20

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
What is the process of evaporation   show
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show transpiration  
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show the chemical properties of the water remain the same.  
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a process that can filter out pollutants or unwanted particles of matter such as salt in the ocean thus converting the salt water to fresh water.   show
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show the Sun.  
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Fertilizers   show
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is the process by which plants give water vapor to the atmosphere.   show
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the steps in the water cycle   show
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show The nitrogen cycle  
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Nitrogen can be used   show
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Nitrogen that is used by plants   show
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When plants take-in/absorb nitrogen they store it in their cell tissue for future use.   show
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show Nitrogen-fixing bacteria  
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show denitrification.  
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show a rise in average temperatures on Earth.  
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show decomposition and combustion.  
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show Carbon dioxide  
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During the process of burning of fossil fuels   show
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show carbon  
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