Question

1.) Blue-green algae can increase soil fertility by directly fixing_____ from atmosphere​

Answer 1

Answer:

Blue green algae fix nitrogen directly from air to enhance fertility of soil.

hope you like it mark me as the brainliest

Answer 2

Answer:

Bacteria like Rhizobium and Azotobacter and blue green algae can fix atmospheric nitrogen in soil.

Explanation:

I hope it may help you,

thanks.