Q. What is a graph showing variations of discharge with time at a particular point of a stream?

A
Unit hydrograph
B
Hyetograph
C
Strange's run off curve
D
Hydrograph
Solution:

A hydrograph is a graph showing the rate of flow (discharge) versus time past a specific point in a river, channel, or conduit carrying flow. The rate of flow is typically expressed in cubic meters or cubic feet per second (cms or cfs).
A hyetograph is a graphical representation of the distribution of rainfall intensity over time.

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