The essential requirement for an organism is energy which is derived from the nutrition that it intakes. For humans, the nutrition is complicated in carbohydrates, lipids, proteins, vitamins, minerals,...
How to prepare for the CBSE Class 12 Board Exam? In this lesson, I will teach you how to prepare for the CBSE Class 12 Board Exam. Your class 12 board exam is probably the most important exam in your...