Across
- 5. this type of car does not pollute the air
- 6. we separate the useful chemicals in oil by ___________ distillation
- 9. this fuel is used for trucks and trains
- 11. oil, gas and coal are __________ fuels
Down
- 1. these useful polymers are made mostly from oil
- 2. burning fossil fuels creates global _________
- 3. climate change can increase _________ weather events
- 4. wind power and solar power do not produce carbon _________
- 5. this is generated in power stations - some of them burn oil
- 7. petroleum formed from dead plant and animal remains ___________ of years ago
- 8. this comes out at the top of the fractionating tower
- 10. instead of burning oil and gas we could use renewable sources like solar or ____