Use the information below and your knowledge of science to answer questions below. Two streams run through a field. One stream is badly polluted, and the other is cleaner. An ecologist measures the average weight of frogs in the two rivers and finds the following information: Average weight in grams Polluted stream 18 Clean stream 25
Use the information below and your knowledge of science to answer questions below.
Two streams run through a field. One stream is badly polluted, and the other is cleaner. An ecologist measures the average weight of frogs in the two rivers and finds the following information:
Average weight in grams
Polluted stream
18
Clean stream
25
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