Energy

Question 1

What sources of energy can only be used once

Answer 1

Coal, gas, nuclear, wood and biomass

Question 2

What energy is made from fossilised plants and animals

Answer 2

Coal, oil and gas

Question 3

What are the advantages of non renewable fuel sources

Answer 3

Use existing technology, easy to store, highly concentrated - produces a lot of electricity

Question 4

Disadvantages of non renewable fuel sources

Answer 4

Produces green house gases/nuclear waste, high running costs, limited supply - will run out

Question 5

What are renewable fuel sources

Answer 5

Solar, tidal, hydro-electric, geothermal, wood, biomass

Question 6

Advantages of renewable fuel sources

Answer 6

Cheaper to install and operate, generate energy for local area, low pollution

Question 7

Disadvantages of renewable fuel sources

Answer 7

Produce less electricity, unreliable supply, harder to store

Question 8

What are green house gases

Answer 8

Gases in the earths atmosphere that allow the Suns heat in but absorb some of the heat trying to get out eg carbon dioxide, methane, nitrous oxide and CFCs

Question 9

What is global warming

Answer 9

When human activities (eg burning fossil fuels) release green house gases that absorb heat and radiate it back to the surface, causing the earth to slowly warm up