Science 1

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Across
  1. 5. A combustible black or dark brown rock consisting chiefly of carbonized plant matter,
  2. 7. Without this human beings cannot live
  3. 8. People go usually on holidays and swim there
  4. 10. Resources made by human beings
Down
  1. 1. Natural resource that is used to feed humankind
  2. 2. Wood that has been prepared for building
  3. 3. a liquid mixture of hydrocarbons which is present in suitable rock strata and can be extracted and refined to produce fuels
  4. 4. Electricity made by water power
  5. 6. A barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity
  6. 9. A large area covered mainly with trees and undergrowth