Which of the following is the pair of biofertilisers?</h2></div>

The nutritive medium for growing bacteria and many fungi in laboratory is called </h2></div>

_________is used for production for citric acid in soft drink industries.</h2></div>

Primary sludge is used for</h2></div>

Which of the following statements is not true regarding BOD?

How are secondary metabolites useful to human welfare? Give two examples of it.</h2></div>

Explain the scientific reason for growing <i>Azolla pinnata</i> in a rice field.<br>…

Who discovered the first antibiotic?</h2></div>