Biofertilizers are</h2></div>

<i>Monascus purpureus</i> is a yeast used commercially in the production of</h2></div>

Match the columns:<table class="wysiwyg-table"><tbody><tr><td>'A'</td><td>…

(i) Expand BOD.<br> (ii) At a particular segment of a river near a sugar factory, the BOD is much higher than the …

With the help of a neat and labelled diagram explain VAM (vesicular arbuscular mycorrhizae).<br> </h2></d…

Write the main constituents of biogas.</h2></div>

Write a short paragraph on the harmful effect of microorganism.</h2></div>

Passage of effluents into oxidation tank is for</h2></div>