Most active nitrogen fixing blue-green algae of rice fields is</h2></div>

<br> Describe the role of micro-organisms in industrial production.</h2></div>

The antibiotic chloromycetin is obtained from </h2></div>

In paddy fields, cyanobacteria serve as an important bio-fertiliser.

Rhizobium is an imprtant ......... bacterium</h2></div>

Which of the following processes provide both energy and manure?

<i>Rhizobium </i>fixes atmospheric _____________</h2></div>

Which of the following options includes biofertilizers?</h2></div>