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Subjects
Science CBSE
Class 9
Why do we fall ill?
Textbook based HOTS
31.
Multiple choice questions XXXI
Exercise condition:
2
m.
1
.
The HIV viruses spread from an infected person to a healthy person by ____.
Blood transfusion
Sexual intercourse
Placental transfusion
All the above
2
.
Which of the following is the causative agent of tuberculosis?
Salmonella
Streptococcus
Pneumococcus
Mycobacterium
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