Decomposition

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Decomposition is when dead matter is turned into simpler substances by decomposers (bacteria, fungi)

 

You need to know how the following factors affect the rate of decay:

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Compost

 

Compost is a nutrient-rich, soil-like material made from decomposed dead organic matter. It is moist, oxygen-rich and used as a fertiliser.

 

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Biogas (Methane)  

 

Anaerobic decomposers make biogas CH₄ . It can be used as a fuel but cannot be stored so has to be used as it's made. It is made in a biogas generator with an optimal temperature of 30oC for maximum methane production

 

> Required Practical 10: Milk decay → pH drop at different temps