vai kuch achcha source batao "basics of enviorment and pollution control" k liye.. NCERT kitne aur konsa chap follow karu. 

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Newton_scoe
@Newton_scoe  ·  78 karma

@jojo_ju You can get enviro related content from t.me/homeworkcoaching (Telegram app channel)there is no need to join that channel just download the content from there. 

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