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Match the organisms in Column A with their action in Column B.

(i) Bacteria (a) Fixing nitrogen
(ii) Rhizobium (b) Setting of curd
(iii) Lactobacillus (c) Baking of bread
(iv) Yeast (d) Causing malaria
(v) A protozoan (e) Causing cholera
(vi) A virus (f) Causing AIDS
(g) Producing antibodies

NCERT Class 8th Science Chapter 2 Microorganisms: Friend and Foe


Bacteria - Causing Cholera
Rhizobium - Fixing Nitrogen
Lactobacillus - Setting of Curd
Yeast - Baking of bread
A protozoan - Causing Maleria
A Virus - Causing AIDS
Vaccine - Producing Antibodies
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