1.

a) Which are four conditions necessary for bacterial growth? b) How should waste water ,organic and inorganic waste disposed from the kitchen?

Answer»

a) Four conditions necessary for bacterial growth are- 

  • Warmth 
  • Food 
  • Moisture 
  • Time

b) Disposal of waste water 

  • All the water from the wash up area may have a separate drain pipe 
  • Choking of drains should be monitored 

Disposal of organic waste

  • It can be processed in the presence of oxygen by composting 
  • It can be processed in the absence of oxygen using anaerobic digestion

Disposal of inorganic waste 

  • It cannot be processed for composting
  • It can be segregated and sent for recycling


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