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Improvement in Food Resources — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceImprovement in Food Resources1 Mark
MCQ
Check dams help to reduce soil erosion as:
  • A
    Water is directly drawn from the rivers.
  • B
    They store the run-off of smaller catchment areas.
  • C
    They stop the rainwater from flowing away.
  • D
    Water is received from one or more reservoirs.
✓

Answer

  1. They stop the rainwater from flowing away.

Explanation:

Check dams are used primarily to control water velocity, conserve soil, and improve land. They are used when other flow-control practices, such as lining the channel or creating bioswales, are impractical.

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