Question

what happens if there are no-micro organisms in the nature ?​

Answer 1

Answer:

life won't be possible

and lack of nitrogen

Answer 2

Answer:

All plants would die

As we've learned, plants are reliant upon bacteria to survive. If they don't have microbes to take in and convert important chemical compounds into usable parts, they'll rapidly lose to ability to produce fuel via photosynthesis and will quickly die.