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Subjects
Science CBSE
Class 9
Why do we fall ill?
Health and diseases
5.
Diseases and their causes
Exercise condition:
2
m.
Identify the right term
:
1.
The causes which can be both infectious and non-infectious are
Immediate causes
Contributary causes
2.
The extrinsic or external disease-causing factors are known as
Infectious causes
Non-infectious causes
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