Question

Cyanobacteria are used in agricultural fields for crop improvement because they casue

Answer 1

Explanation:

Cyanobacteria are used in. agricultural crop improvement because of their adicity to fixatmospheric nitrogen and make it available to the plants. This improves the yield of the crops and also reduces the cost of application of nitrogen fertilizers, e.g., Anabena and Nostoc.

Answer 2

Answer:

Fixing of atmospheric nitrogen making it available for the plants.....