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Biology, 28.09.2019 20:10 iancuteodora30

The source of a stream is at an elveation of 1861 meters. the stream ends in a lake at an elevation of 361 meters. if the lake is 100 kilometers away fro the source, what is the average gradient of the stream? 1.5m/km

a
1.5m/km

b
.5 m/km

c
10 m/km

d
15m/km

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