The main sources of biofertilizers are</h2></div>

A green manure supplies</h2></div>

Pyrethrum is extracted from</h2></div>

Which one of the following is associated with denitrification?</h2></div>

Draw a diagrammatic sketch of biogas plant, and label its various components given below: Gas Holder, Sludge Chamber, Di…

Tissue plasminogen activator is</h2></div>

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

Mention a product of human welfare obtained with the help of the following microbe <i>Propionibacterium s…