Across
- 2. chemical element with the symbol 'u'
- 4. energy generated using winds,tides,solar,biogas and geothermal power
- 7. I am the natural movement of air
- 8. opposite of flourish
Down
- 1. conversion of sunlight to energy
- 3. Gaseous fuel especially methane
- 5. strength and vitality required for work to take place
- 6. another word for emitting radiation