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2. Micro-Organisms: Friends and Foe
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Q45 of 104 Page 40

Mention any three ways of preventing diseases spread by mosquitoes.

The spreading of diseases by mosquitoes can be prevented by following ways:

(i) We should not let water collect anywhere in the neighborhood.


(ii) We should keep our surrounding clean and dry.


(iii) Mosquito repellant creams should be applied on the exposed parts of the body.


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44

State any two ways of preventing diseases spread by houseflies.

44

How do mosquitoes carry disease-causing micro-organisms and spread diseases?

46

What is meant by fermentation? Name the scientist who discovered fermentation.

46

Which micro-organism converts sugar into alcohol during fermentation?

Questions · 104
2. Micro-Organisms: Friends and Foe
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