decomposition

• • Factors affecting decay:
  • Warmth - for optimum enzyme activity which controls respiration
  • Oxygen - needed fro aerobic respiration
  • Water - for healthy cytoplasm where chemicals reactions take place
• • decomposers are groups of microorganism that include bacteria and fungi, they feed on waste droppings and dead organisms
• what does anaerobic decay cause?

  produces methane gas - biogas generators can be used to produce methane gas as fuel
• how do gardeners produce compost?

  • provide optimum conditions for rapid decay of waste biological material
  • compost produced is used as a natural fertiliser for growing garden crops