However, quite apart from the energy gained by their combustion they remain, and always will remain, the basic raw material for all organic chemistry.
Besides being fuel, they are the building blocks of all organic chemistry.
They do not give any energy upon combustion.
A small puppy sits on the lawn outside the house.
She closed her eyes.
you can watch TV while you use the bicycle
Someone is toting packages in an urban setting.
Lefkes has very wide streets.
Someone is working on a wall.