11. ਕਿਹੜੇ ਪੌਦੇ ਪ੍ਰਦੂਸ਼ਤ ਪਾਣੀ ਵਿੱਚ ਉੱਗਦੇ ਹਨ ? Which of the following plants grow in polluted w
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none of them are polluted
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