Sources, generation and storage of energy

Question 1

What are the 3 fossil fuels?

Answer 1

• Coal
• Oil
• gas

Question 2

How is oil extracted?

Answer 2

• Crude oil
• Extracted from the Earth under the seabed
• Refined into liquid fuels through fractional distillation
• Creates petrol
• Can also be used to generate electricity in power stations.

Question 3

How is gas extracted?

Answer 3

• Extracted from ground through drilling
• Piped through national grid (mains) to houses and factories
• Can also be used to generate electricity in power stations.

Question 4

How is coal extracted?

Answer 4

• Mined from the ground

- Burnt in power stations to generate electricity

Question 5

What are the disadvantages of using fossil fuels?

Answer 5

Gases such as Carbon Dioxide and Sulphur dioxide are released which are pollutants, adding to the greenhouse effect and leading to the increase in global warming, when fossil fuels are burnt.

• Can cause breathing problems
• Sulphur dioxide causes acid rain- corrodes buildings made out of limestone, disables the ability of animals to live in large bodies of water.
• Gases can cause breathing problems
• Finite resources