Do you think one day all the parasites, bacteria and viruses will be extinct in future and we will not have to worry about drinking unpurified water. It may take a long time for this but in far future this could be possible, don't you think so?
Do you think one day all the parasites, bacteria and viruses will be extinct in future and we will not have to worry about drinking unpurified water. It may take a long time for this but in far future this could be possible, don't you think so?
I think it is not possible bacteria, parasites and viruses are all there , all the time.