alleryWhy are check dams built across streams?
ATo make streams flow faster
BTo dry up nearby wells
CTo block all the rainfall
DTo increase seepage underground
Answer & Solution
Correct answer: D. To increase seepage underground
1. A check dam slows and holds stream water.
2. This enhances percolation of surface water into the subsoil.
3. It does not speed flow, dry wells or block rain.
_Source: Wikipedia, Rainwater harvesting, Technologies_
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