EMS- Energy and the environment, page no 31

What are fossil fuels:

Fossil fuels are made from decomposing plants and animals. These fuels are found in Earth's crust and contain carbon and hydrogen, which can be burned for energy. Coal, oil, and natural gas are examples of fossil fuels.

Different fossil fuels and there advantages and disadvantages: 1. Fossil fuels advantages:

• Plentiful supply in some locations.

• Extracting provides jobs.

• Existing technology: the fuel is available for most countries to use.

Fossil fuels disadvantages:

• Carbon dioxide and toxic gases when burnt.

• Extraction causes damage to local area.

• Limited supply: prices will rise as the supplies get smaller.

2. Nuclear power advantages:

• Does not produce carbon dioxide.

• Small amount of fuel produces large amounts of energy.

• Power plants employ lots of people.

Nuclear power disadvantages:

• Risk of radiation leakage.

• Waste products cannot be recycled as radiation active for centuries.

• Limited supply.

3. Wave power advantages:

• Does not produce carbon dioxide.

• A renewable source of power.

Wave power disadvantages:

• Limited to specific areas.

• Currently not very efficient, so large amounts of resources needed.

  
  

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