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Subjects
Science CBSE
Class 8
Microorganisms - Friend and Foe
Helpful and diseasecausing microorganisms
28.
Diseases caused in animals, plants and human by microorgnisms
Exercise condition:
4.5
m.
Choose the best answer:
1.
Choose a way to prevent waterborne diseases:
Chemotherapy
Physical exercise
Personal hygiene
2.
Chickenpox is not an infectious disease.
False
True
3
.
Non infectious disease are caused by pathogen.
True
False
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