NATURAL RESOURCES

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