The Earths Atmosphere: Fossil Fuels.

Question 1

What are fossil fuels?

Answer 1

• Formed over milions of years.
• ## Non-Renewable: Eventually run out.

Question 2

How is coal made?

Answer 2

• Remains of Ferns and trees.
• Plant remains are covered in sendiment rock and compressed.
• High Temperature + pressure creates coal.

Question 3

How is oil formed?

Answer 3

• Formed from plankton when they die they settle in mud on the sea-bed.
• If oxygen is not present they do not decompose.
• Compressed by sendiment.
• ## Heat + Pressure convert them into crude oil.

Question 4

How is natural gases formed?

Answer 4

• Near deposits of oil.
• Formed from plankton.
• ## Contain trapped carbon.