Write the difference between manure and biofertilizers.</h2></div>

Sewage sludge is used as a</h2></div>

Which of the following is widely used as a successful biofertiliser in Indian rice fields?</h2></div>

Which of the following is not used as a bio-fertiliser?

Which of the following pairs serves as a biofertilizer?</h2></div>

Which of the following is a common antibiotic obtained from lichens?

.............. is an alternative source of energy.</h2></div>

The crushed food for obtaining malt is called wort.