Streams As part of the course work, a class at an upstateNY college collects data on streams each year. Studentsrecord a number of biological, chemical, and physical variables, including the stream name, the substrate of the stream (limestone, shale, or mixed), the pH, the tempera-ture (°C), and the BCI, a measure of biological diversity. a) Name each variable, indicating whether it is categori-cal or quantitative, and giving the units if available. b) These streams have been classified according to theirsubstrate—the composition of soil and rock overwhich they flow—as summarized in the table. Whatkind of graph might be used to display these data?

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