Natural Resources

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Across
  1. 5. Energy from the Sun that is converted into thermal or electrical energy is known as:
  2. 7. Plant matter grown to generate electricity, heat or use as fuel is referred to as:
  3. 8. Energy and materials found in the nature that are used by the human society are termed as:
  4. 9. Electricity produced by harnessing the energy of flowing water known as:
  5. 10. Natural resources such as rivers, lakes, glaciers and groundwater are termed as:
  6. 11. What resources can’t be replaced, or nature will take a long time (millions of years) to replace?
  7. 15. Fossil fuels in form of liquid and gaseous hydrocarbons found in underground reservoirs:
Down
  1. 1. Natural resources from which various metals and chemicals are extracted are termed as:
  2. 2. Power generated by utilizing the heat stored beneath the Earth’s surface is referred to as:
  3. 3. What type of resources are constantly replaced by nature, and can be harvested indefinitely?
  4. 4. Energy resources formed in the Earth’s crust from plant and animal matter over millions of years:
  5. 6. Natural resources that are converted by humans into various forms of usable energy are classified as:
  6. 8. Electricity produced from energy released by controlled atomic fission is known as:
  7. 12. Power generated by harnessing wind energy using wind mills and turbines known as:
  8. 13. Natural resources from the biosphere, such as forests, crops and wildlife, are termed as:
  9. 14. Name the solid fossil fuel formed by decomposed plant material buried over millions of years.