1. You decide to test whether charcoal helps purify water or not. You design a filter that contains charcoal and run water from a nearby stream through the filter. Afterward, you test the water for contaminants.
Independent variable:
Dependent variable:
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Answer:
aadhya jindal is my full name ok
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Answer:idk I just wanted point lol
Explanation:
Because I need point like huh duh
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