Multiple choice general knowledge science & technology

A stream's discharge is:

  1. the volume of water passing a fixed point per unit time

  2. the product of a stream's velocity and channel cross-sectional area

  3. influenced by channel width and depth, stream gradient, channel shape, and channel roughness

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Discharge comprehensively includes all these aspects: the volume per time definition (A), the calculation method (B), and the influencing factors (C). Discharge equals velocity times cross-sectional area, affected by width, depth, gradient, shape, and roughness.

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