Hellow guys, Welcome to my website, and you are watching ACTIVITY 2.9 ll CLASS 10 ll SCIENCE ll CHAPTER 2 ll NCERT ll ANKITA MAM. and this vIdeo is uploaded by A J PATEL INSTITUTE at 2021-11-03T23:00:14-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.