what do you mean by big bang ?????????????????tell me without asking your parents or taking the help of web.........................
Hello,
Big-bang theory explains the birth of the universe. According to this theory all the mass in the universe was concentrated at one place, which exploded to give birth to all the stars, planets and other celestial bodies.
The answer to this question calls for an understanding of concepts, the scope of which go much beyond the ambit of the syllabus in your current grade.
@ Akash, Usha Good work ! Keep it up!