Hey guys My self Khem karan sinha and I teach Biology and science to students who wanna know what are the concepts and basis of learning, I just make you clear all your concepts very easily and make you underst and everything. I believe rather than mugging up wour books you should gather the concepts and basics, which will develop a critical thinking mindset and you just dont study subject you gonna understand it and have a deep understanding and that's important thing in learning. + more - less