The Hydrologic Cycle and Stream Dynamics Quiz
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Questions and Answers

What is the equation that illustrates the relationship between velocity, cross-sectional area, and discharge of a stream?

  • $Q = A/V$
  • $Q = VA$ (correct)
  • $Q = V/A$
  • $Q = V + A$
  • How does the stream hydrograph help interpret flood events?

  • By displaying the discharge of a stream over time and showing sharp spikes in discharge for flood events (correct)
  • By displaying the velocity of a stream over time and showing steady increases in velocity for flood events
  • By displaying the depth of a stream over time and showing fluctuations in depth for flood events
  • By displaying the cross-sectional area of a stream over time and showing gradual changes in area for flood events
  • What role do streams play in the movement of water within the hydrologic cycle?

  • Storing water at high elevations and releasing it slowly over time
  • Transporting water from higher elevations to lower elevations and ultimately returning it to the oceans or replenishing groundwater (correct)
  • Evaporating excess water to maintain balance in the hydrologic cycle
  • Creating water through chemical reactions and releasing it into the atmosphere
  • In the equation $Q = VA$, what needs to increase to increase discharge?

    <p>Velocity, cross-sectional area, or both</p> Signup and view all the answers

    What contributes to streamflow, which eventually flows into larger amounts of water or infiltrates into the ground?

    <p>Rainfall and snowmelt</p> Signup and view all the answers

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