Processes involved in nitrogen cycle — task. Science State Board, Class 9.

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Choose the correct answer:

(Note : More than one answer can also be correct)

1. Which of the following is true about rhizobium?

It forms symbiotic relationship with the plant roots
It fixes nitrogen in the root nodules
It is a nitrogen fixing bacteria
It fixes nitrogen in the form of nitrates

2. Example of symbiotic bacteria that fixes nitrogen includes __________.

frankia
rhizobium
azotobacter
pseudomonas

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