Thermal power plants

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Across
  1. 2. - where something comes from or is obtained.
  2. 4. - devices that change a gas into a liquid by cooling it down.
  3. 7. - water moving continuously in a closed system.
  4. 9. - therefore; as a result of something mentioned.
  5. 11. - from where; indicating the origin or source of something.
  6. 12. - living things that grow in the ground and need water and sunlight to survive.
Down
  1. 1. - a large natural or artificial lake used as a source of water supply.
  2. 3. - to make something start working or operating.
  3. 5. - sent or passed on from one place or person to another.
  4. 6. - a device used to connect telephone calls manually.
  5. 7. - people who buy goods or services for their own use.
  6. 8. - quite large in size, amount, or importance.
  7. 10. - a set of levels or numbers showing the size or amount of something.