Question

Blue green algae fix __________directly from air and enhance fertility of soil.
fill up​

Answer 1

Answer:

. Answer: Bacteria such as rhizobium and certain blue-green algae present in the soil can fix atmospheric nitrogen and convert into usable nitrogenous compounds, which are used by plants for the synthesis of plant proteins and other compounds.

Answer 2

Answer:

Here is the answer

✅Atmospheric niterogen

Hope it will help you