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ITBS Level 14 Grade 8 Science 5
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Use the information below and your knowledge of science to answer questions below:


An environmental scientist measures the iron content of the water at various points in a river. She makes this graph of her data:


ITBS Level 14 Grade 8 Science 5
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3 Questions

1. Which of the following best explains her data?
2. Water flowing in a river is one part of the water cycle. What part of the water cycle could some of the water in the river have gone through immediately before this?
3. According to the scientist's data, by about what percentage did the iron content of the water change over the 30 kilometers of her measurements?

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