Biology, 11.06.2021 23:00 phillipselijah2
A student builds a model to show how pollutants move through an ecosystem
when the student sprays water onto the model, red color appears in the cloth and
in the water in the middle layer of marbles. Which part of the model represents
pollutants used by humans
Red powdered paint
Layer of sand
Thick cloth
Marbles
Answers: 2
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A student builds a model to show how pollutants move through an ecosystem
when the student sprays w...
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