Statement I: The product of relief (H) and drainage density (D\(_d\)) is denoted as ruggedness number.
Statement II: The value of ruggedness number becomes extremely high when H and D\(_d\) are large (when slope is steep and long).
In light of the above statements, choose the most appropriate answer from the options given below:

Question

Given below are two statements:
Statement (I): In small catchments the overland flow phase is predominant over the channel flow. Hence the land use and the intensity of rainfall have an important role on the peak flood.
Statement (II): On large catchments the effects of land use and intensity of rainfall are suppressed as the channel flow phase is more predominant.
In light of the above statements, choose the most appropriate answer from the options given below.

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The Correct Option is A

Solution and Explanation

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