Hi , I have two doubts about which I am quite confused. It would be great if I can get a decent answer for them. 1.) How many possible number of elements exist in nature discovered by humans , like H,He,Carbon,Silicon,Uranium,Strontium,Thorium,etc... ? -Are there any possibilities for an increase in the figure. -If no , then why ? 2.) Majority of theories related to "Birth Of Universe" , assume that at time t=0; everything was uniform or there was nothing. Some say singularity. Considering this assumption , I have a question in mind. ---Why there at so many different varities of objects/elements present in universe despite of the fact that all of it started from something uniform. ?? ---For evolution/change to occur , we must input changes into the system. If yes , then how one change can lead to billions and trillions of diverse forms. I am looking for a decent answer or link , which can help me eliminate my confusion. I would be glad if someone can help clear my misconceptions. Thanks, Rishi.