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Which factor primarily influences the shape of the rising limb in a hydrograph?

18. Which factor primarily influences the shape of the rising limb in a hydrograph?

1. Intensity of rainfall
2. Antecedent soil moisture
3. Duration of rainfall
4. Topography of the watershed

Answer

The correct answer is: A) Intensity of rainfall

Explanation

The rising limb of a hydrograph is primarily influenced by the intensity of rainfall, as higher intensities lead to faster runoff response.