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Bahut acha samjhaya sir ji parasarnd
Sir smoke gas & solid na kolide solution kaise hota h ? Q2- normal hand pump kis process se purify hokar water ata h? Thanks sir ji..
Sir Meri class Kyu nhi chal rhi hai
Interesting class sir 🙏🙏🙏🙏
sir episode 75 me 3-4 question puchhe hai uska ans de dijiye please sir
Kavita
Shivkumar gawar
October 2, 2020, 12:51 pmBahut acha samjhaya sir ji parasarnd
Priya prajapati
September 11, 2020, 10:20 amSir smoke gas & solid na kolide solution kaise hota h ? Q2- normal hand pump kis process se purify hokar water ata h? Thanks sir ji..
ANKIT PANDEY
September 10, 2020, 11:31 pmSir Meri class Kyu nhi chal rhi hai
Saurabh Kumar chaudharee
September 10, 2020, 10:49 pmInteresting class sir 🙏🙏🙏🙏
Funfun Kumar Baitha
September 10, 2020, 9:44 pmsir episode 75 me 3-4 question puchhe hai uska ans de dijiye please sir
Kavita
September 10, 2020, 8:01 pmKavita