What is the source of energy? A source of energy is one which provides an adequate amount of energy in a convenient form over a long period. What are the needs for energy? Making food, transportation,...
WRITING CHEMICAL FORMULA- *The Chemical Formula is a representation of a substance by means of the symbol. THE RULES FOR WRITING CHEMICAL FORMULA ARE- *The...
Are you scared of numerical? Do you think you don't understand them? If yes, then read ahead. See, it might be any exam, but numerical won't leave your back. So let's talk about common problems and their...