Dear Students, Download SSt Pol science class X notes from https://drive.google.com/open?id=1aUoGlXegQ3cc9dAEUjRdbr8LminRpc-M Watch free complete revision in just 90 minutes class on YouTube Channel: https://www.youtube.com/channel/UC5x_HuB8ME46_T-g-RooQ5g Class: https://www.youtube.com/watch?v=5aTnDJsUVIE Thanks