Why coal and petroleum are called fossil fuels?

More Questions

• Why are coal petroleum and natural gas called fossil fuels?
• What is the study of fossils called?
• What are the harmful effects of using fossil fuels?
• Why should we conserve fossil fuels?
• What are the disadvantages of using fossil fuels?
• Why fossil fuels are exhaustible natural resources?
• What is the phenomenon of the formation of coal called?
• What is meant by fossil fuel what are their types?
• Why should we use fossil fuels judiciously?
• Why are fossil fuels exhaustible natural resources?