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Match the organisms in Column A with their action in Column B.
Column A
A. Bacteria
B. Rhizobium
C. Protozoa
D. Virus
Column B
I. Fixing Nitrogen
II. Malaria
III. AIDS
IV. Tuberculosis
Choose the correct option from the answers given below.
Tuberculosis is caused by bacteria (IV), and Rhizobium fixes nitrogen in the root nodules of legumes (I). Malaria is caused by a protozoan (II), and AIDS by a virus (III). This is option c.
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