Question

Which one is false?

I. Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial environments.

II. Anabaena, Nostoc and Oscillatoria are photosynthetic oxygenic N₂ fixers

III. Tolypothrix (BGA) can increase rice production by about 20%

IV. BGA add organic matter to the soil and increase its fertility.

V. In our country biofertilizers are not available commercially in the markets for farmers.

• A. Only V
• B. Only IV
• C. Only III
• D. None

Answer 1

Answer: (A)

Only V