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EOYA Review

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 an unhealthy substance in our environment?   pollutant  
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What is urban growth?   building new neighborhoods and shopping areas  
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What is an effect of urban growth?   increase in erosion, less open land, more pollution  
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Why is burning coal bad for our environment?   can cause sulfur dioxide and lead to acid rain  
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What is soil made of?   rock and organic material  
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How much fresh water do we have on Earth?   3%  
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What is most of the water on Earth?   salt water  
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What is weathering?   breakdown of rocks to make sediment  
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What type of rock usually has fossils?   sedimentary  
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