State whether the statements are true or false.

1. Wood is a natural resource.
2. Metals are biological resources.
3. Groundwater is a non-renewable resource.
4. Substances that are burnt to get energy are called fuels.
5. Coke is a good industrial fuel.
6. Petroleum and natural gas are both released at an oil well.
7. Petroleum is a mixture of hydrocarbons.
8. In a fractionating column, petroleum gas is obtained at the bottom of the column.
9. Natural gas causes less pollution than coal when burnt.
10. LPG is used as a non-polluting fuel in vehicles.