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

Which one of the following is not used as biofertiliser?</h2></div>

Sewage water is purified for reuse by the action of</h2></div>

Citric acid used in the production of beverages, toffees, chocolates is obtained by fermentation of _______ by <i>…

Which of the following helps in the ripening of Camembert cheese?

<span>If wheat field is inoculated with </span><i>Rhizobium,</i><span>&a…

Immunosuppressive cyclosporin A is obtained from</h2></div>

The term antibiotic was coined by</h2></div>