<i>Azolla </i>is used as a biofertilizer because <br> </h2></div>

Passage of effluents into oxidation tank is for</h2></div>

Briefly describe the household products produced through the agency of microbes.</h2></div>

What are the dragonflies use to get rid of?

Bread or idli dough rises because of</h2></div>

Which of the following is the cyanobacterial group acting as biofertiliser?</h2></div>

Which of the following antibiotics is not correctly matched with the source from which it is obtained?</h2></di…

Which wood is more suitable for fuel?