Across
- 3. Energy
- 6. of renewing used items into a new product\
- 7. substance that can be consumed to produce energy
- 8. to warm a building
Down
- 1. Energy
- 2. moving with force from an area with high pressure to an area of low pressure
- 4. fuel consisting of carbonized vegetable matter
- 5. derived from the heat in the interior of the earth
- 8. or providing or producing or transmitting or operated by electricity
- 9. process of a device powering up to a stronger stage