Answers

  • Brainly User
2015-10-09T18:22:53+05:30
Coal, oil and natural gas are fossil fuels. They have been in existence for millions of years. Many people use these fuels as an energy source. However, fossil fuels are non-renewable; if resources are depleted, they will never be available again. It is therefore important to conserve fossil fuels, using alternative sources of energy when possible.


0