Question

Mention two ways by which communicable diseases can spread? (2)

B. Who discovered pasteurisation? Explain the method of pasteurisation for the

preservation of milk. ​

Answer 1

Answer:

communicable diseases can be spread through sneezing coughing ,,infected syring,, blood transfusion,, physical contact etc...

B... Louis pastures discover pasteurisation...

to pasteurised the milk...

Answer 2

Answer:

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