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Why is studying a water divide useful in a river system?

Answer and explanation

Correct answer: It helps identify boundaries of different drainage basins

Direct answer: Option B, it helps identify boundaries of different drainage basins. A water divide is a raised area such as a ridge or highland. Rain falling on one side flows into one river system, while rain falling on the other side flows into another system. Thus it separates two drainage basins and helps us map and understand river networks. B is correct. A is wrong because a divide does not determine river colour. C is wrong because it does not make freshwater saline. D is wrong because it does not transform a sea into a river. This knowledge is useful for planning water management and understanding where runoff will go. Memory cue: a divide divides drainage.

Related tags

GeographyDrainageRivers

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