COAL AND DIAMOND ARE FORMS OF CARBON THEN WHY IS COAL BLACK AND DIAMOND SHINY?
What is producer gas?
Why does a diamond sparkle?
If all the petroleum of our Earth is used up, is there any chance to recover their presence?
what do u mean by destructive distillation of dry sugar?
COAL AND DIAMOND ARE FORMS OF CARBON THEN WHY IS COAL BLACK AND DIAMOND SHINY?
What is producer gas?
Why does a diamond sparkle?
If all the petroleum of our Earth is used up, is there any chance to recover their presence?
what do u mean by destructive distillation of dry sugar?