Answer: Carbon and its compound: Ethane, Carbohydrate and diamond.
These compounds are different forms of carbon. The carbon can exist in many form in nature.
It can be in the form of hydrocarbon, a compound made up of hydrogen and carbon.
Carbohydrate is present in the body as a energy source.
Diamond is the allotrophic form of carbon.
Oxygen and its compound: Water and Ozone are the compounds which consists of oxygen.
Water is made up of hydrogen and oxygen. It is used by all the living components.
