What are the three main fossil fuels?
Coal, oil, natural gas
What is the formation of oil and natural gas?
- Plant animals died, fell to the bottom of the sea.
- covered in mud.
- covered by more sediment, changed into rock as the temperature and pressure increased.
- remains were chemically altered by the process and firmed oil and natural gas.
- oil moved through spaces in the permeable rock and can be git by drilling in rock
How was coal formed?
Millions of years ago, plants died in swamps.
When plants died they were buried in mud which stopped them from rotting away. Buried in the absense of oxygen and compressed. The heat and pressure turned the mud into rock and the plant fossils into coal
Why are fossil fuels so important to society?
They are the most popular energy source and is used everyday
What type of resources are fossil fuels?
Non- renewable
What are problems with burning fossil fuels?
Acid rain, air pollution, green house effect
What are alternate energy resources to fossil fuels?
Hydrogen
What is an advantage of using hydrogen as an alternative energy source?
Water is the only product
Disadvantage to using hydrogen as an alternate energy source?
Production from electrolysis of water
