Question

2.
Differentiate
Discuss the different ways in which communicable diseases spread. Explain with the help of an example
M
3.
of an example.
Discuss five methods of food preservation.​

Answer 1

Answer:

Some ways in which communicable diseases spread are by:

• Physical contact with an infected person, e.g. through touch (staphylococcus)
• sexual contact (gonorrhoea, HIV)
• faecal/oral transmission (hepatitis A)
• or droplet (influenza) Contact with a contaminated surfaces or objects (Norovirus)
• food (salmonella, E

5 methods of preservation:

• Chilling
• Freezing
• Sugaring
• Salting
• Canning
• Packing

Explanation:

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