দহন || দৈহিক শক্তি || পানি চত্রু || অধ্যায়-৭ || পর্ব-৩ || সপ্তম শ্রেণির বিজ্ঞান || Class 7 Sci

Описание: দহন || দৈহিক শক্তি || পানি চত্রু || অধ্যায়-৭ || পর্ব-৩ || সপ্তম শ্রেণির বিজ্ঞান || Class 7 Science
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This channel may use some copyrighted materials without specific authorization of the owner but contents used here falls under the “Fair Use” .Copyright Disclaimer under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.