Biogas

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Across
  1. 3. Waste products from animals.
  2. 4. where rich nutrient soil exits from after being decayed my microorganisms in the fermenteer.
  3. 5. where manure and other waste matarials enter through.
  4. 6. Biogas is used in these types of countries.
  5. 7. Where all the waste products are churned up and microorganisms break down the waste products.
  6. 9. Single celled organism.
Down
  1. 1. The type of respiration that does not use oxygen.
  2. 2. The main compound needed, it is used to power gas and electric products.
  3. 8. The process by which living matter is decayed overtime by microorganisms such as bactaria to get fuel.