Improvement In Food Resources — Science STD 9 — Question
Gujarat BoardEnglish MediumSTD 9ScienceImprovement In Food Resources1 Mark
Question
Open wells are not very _______.
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Answer
Open wells are not very deep.
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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