Question

what is the micro-organism helpful for nitrogen fixtation..1)micro orthropods...2)lacto bacillus..3)chlamydomonas..3)ameoba​

Answer 1

Answer:

(1). micro orthropods

Answer 2

Answer:

$\mathfrak{\huge{\purple{\underline{\underline{Answer :}}}}}$

Nitrogen fixation is carried out naturally in soil by microorganisms termed diazotrophs that include bacteria such as Azotobacter and archaea. Some nitrogen-fixing bacteria have symbiotic relationships with plant groups, especially legumes.

Explanation:

The options that u have given doesn't has the right one, I might be wrong too!