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Which one of the following is not a nitrogen-fixing organism?

a. Anabaena
b. Nostoc
c. Azotobacter
d. Pseudomonas

Answers (1)

The answer is the option (d) Pseudomonas

Explanation: Most of the species of Pseudomonas are pathogens; causing diseases in plants and animals.

Posted by

Gurleen Kaur

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