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Subjects
Science State Board
Class 9
World of microbes
Microbes and their types
25.
Introduction of microorganisms
Exercise condition:
4
m.
Fill in the blanks:
1
.
The bacteria
ferments tea and tobacco leaves, Beans of coffee and cocoa.
2
.
Viral diseases like cholera, tuberculosis, smallpox and hepatitis, can be prevented by
.
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