Sophia is testing an effect of different volumes of water on the growth of duckweed. She set up the experiment that is shown below.
Three beakers, all the same size, are set up with cool tap water and duckweed in them. The first beaker contains 100 mL of water and 20 fronds of duckweed. The second beaker contains 200 mL of water and 50 fronds of duckweed. The third beaker contains 300 mL of water and 40 fronds of duckweed.
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