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Standard VI
Geography
Metamorphic Rocks
What causes r...
Question
What causes rocks in a rivers to become smooth?
A
Exposure to sunlight
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B
Water currents
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C
Earthquakes
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D
Movement of fish
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Solution
The correct option is
B
Water currents
The water currents in rivers bring about the process of weathering, wherein rocks are smoothened and polished.
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