CTET Class I to V 2016 Feb Paper

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Question : 77 of 150
 
Marks: +1, -0
The following are some statements regarding step wells or Baolis:
A. They are a traditional system of water storage and conservation.
B They were used as a community resource.
C They are found/constructed mainly in rain-parched States.
D. They contain only contaminated water.
Which of the above statement(s) is /are correct?
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