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6. What is a sankey diagram?
- A diagram showing the use of energy
- A diagram showing amount of CO2 released by power stations
7. Is electricity a primary or secondary energy source?
- Neither
- Secondary energy source
- Primary energy source
8. Why aren't renweable energy sources used alot?
- They increase pollution more than non-renweable sources
- They are more dangerous
- They don't produce as much eletricity as non-renewable energy sources
- They produce too much energy
9. Why is energy transferred at high voltages?
- To reduce the amount of energy loss
- To increase energy loss