Mujhe bio ke diagram bhut tough lgte the but apke videos dekh ke abb easy lgtaa h....... Maine heart kaa diagram bhi apke videos se hee sikhaa.... Thq so much sir
Maine iska 10 bar practis Kiya aur main ise Matra 5 minut mein banaa le raha 💓💓💓💓💓 very very thanks class 10th ke liye nephron ka please Chitra banaaiye sar