<p><span>Activated sludge should have the ability to settle quickly so that it can </span></p>&l…

Why are bio-fertilizers preferred over chemical fertilizers?</h2></div>

(a) Organic farmers prefer biological control of diseases and pests to the use of chemical for the same purpose. Justify…

Bacteria responsible for fermentation of dairy milk are</h2></div>

Fertility of paddy fields is improved by addition of</h2></div>

They help in increasing soil fertility.</h2></div>

Mention a product of human welfare obtained with the help of the following microbe <i>Saccharomyces cerevisiae&amp…

Brandy is prepared by fermentation of wine.