Which of the following is formed during the process of anaerobic fermentation?</h2></div>

What is the full form of BOD?

Rhizobium is a __________</h2></div>

Which one of the following is useful in rice fields?</h2></div>

<i>Azolla</i><span> is used as a biofertilizer, because it</span></h2></div&gt…

Which of the following plant is used as green manure?</h2></div>

Which one of the following pairs is correctly matched?</h2></div>

After Penicillin, other antibiotics were also purified from other microbes.