1. Tardigrade
  2. Question
  3. Biology
  4. Which of the following statements is/are incorrect? (i) Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial habitats. (ii) A nabaena, Nostoc and Oscillatoria are photosynthetic N2 - fixing cyanobacteria (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, biofertilisers are not available commercially in the markets for farmers

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Q. Which of the following statements is/are incorrect?
(i) Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial habitats.
(ii) A nabaena, Nostoc and Oscillatoria are photosynthetic $N_{2}$ - fixing cyanobacteria
(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, biofertilisers are not available commercially in the markets for farmers

Microbes in Human Welfare

Solution:

In our country, a number of biofertilisers are available commercially in the market and farmers use these regularly in their fields. This helps to replenish soil nutrients and to reduce dependence on chemical fertilisers