Natural resources

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Across
  1. 3. - A fossil fuel used for heating and generating electricity
  2. 4. - An artificial lake behind the dam
  3. 5. - Important non-metallic mineral
  4. 6. - It improves the quality of soil
  5. 7. - Substances found deep under the earth's surface.
  6. 9. - Crops grown in the summer season
  7. 10. - The practice of supplying land with water so that crops will grow
Down
  1. 1. - Formed by the breaking up of rocks made of lava
  2. 2. - Water falls from a height to generate electricity
  3. 8. - Soil used to make bricks