Word puzzle

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Across
  1. 3. A ….. belt is a suburban region housing many people who travel regularly to a nearby city in which they work.
  2. 4. Farms that do not meet hygiene requirements can spread …….?
  3. 6. A common way to call light-emitting diode light bulbs?
  4. 7. A machine which is able to generate electricity from the force of blades rotated by winds?
  5. 8. A place where solid waste ends up in?
Down
  1. 1. Energy that meets the needs of the present without compromising the ability of future generations to meet their own needs is called?
  2. 2. The cutting down of trees in forest for wood
  3. 5. The quality of causing little or no damage to the environment and therefore able to continue for a long time?