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Which factor affects the shape of a unit hydrograph?

22. Which factor affects the shape of a unit hydrograph?

1. Watershed area
2. Duration of rainfall
3. Antecedent moisture conditions
4. Slope of the watershed

Answer

The correct answer is: B) Duration of rainfall

Explanation

The duration and intensity of rainfall influence the shape of a unit hydrograph, as they determine the timing and magnitude of runoff response.