Unit 4 Earth's Resources

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Across
  1. 4. the energy produced by hear within Earth.
  2. 6. electrical energy produced by the flow of water.
  3. 7. the energy released by a fission or fusion; the binding energy if the atomic nucleolus.
  4. 8. a natural resource that humans use to generate electricity.
  5. 10. any material that is used by humans such as water, petroleum, minerals, forests, and animals
  6. 11. a resource that forms at a rate that is much slower than the rate at which the resource is consumed.
  7. 13. the process by which a nucleolus splits into two or more fragments and releases neutrons and energy.
Down
  1. 1. the use of the force of moving air to drive an electric generator.
  2. 2. a nonrenewable energy resource formed from the remains of organisms that lived long ago.
  3. 3. a natural resource that humans use to make objects or to consume as food or drink.
  4. 5. a natural resource that can be replaced at the same rate at which the resource can be consumed
  5. 9. the energy received by Earth from the sun in the form of radiation.
  6. 12. plant matter; manure; or ant other organic matter that is used as an energy source.