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PLEASEPLEASEPLEASE HELP A SCIENTIFIC question should be specific, measurable and address one variable. How can you change the following question to make it scientific? How much pollution is in urban streams?

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User Saadia
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1 Answer

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Answer: Among all types of ecosystems, urban produce roughly 78% of carbon emissions and substantial airborne pollutants that adversely affect over 50% of the world's population living in them 5,10.

Step-by-step explanation:

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User Ranjith R
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