Which of the following is incorrect? | Real Paper AI

Which of the following is incorrect?

Choose Your Option

A. Rhizobium fixes atmospheric nitrogen into inorganic forms which are used by plants as nutrients

B. Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial environments many of which can fix atmospheric nitrogen

C. Blue green algae add organic matter to the soil and increase its fertility

D. In paddy fields, cyanobacteria serve as an important biofertiliser