Improvement in Food Resources — Science STD 9 — Question
Rajasthan BoardEnglish MediumSTD 9ScienceImprovement in Food Resources1 Mark
Question
Open wells are not very $.....$
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Answer
They are not very deep $($ generally $3$ to $15m)$. They have relatively large diameter $($ generally $1$ to $5m )$ and low yields (generally less than $30 m^3/ hr).$
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