<i>Bacillus thuringiensis</i> forms protein crystals which contain insecticidal protein. This protein&nb…

Domestic sewage of large cities.</h2></div>

Secondary sewage treatment is mainly </h2></div>

Which proves to be effective biological control for nematodal pathogens of plants?</h2></div>

The residue left after methane production from cattle dung is:</h2></div>

<span>What are methanogens? How do they help to generate biogas?</span></h2></div>

Azolla a type of an aquatic fern, is used as a biofertiliser in a paddy field due to its ability to fix the atmospheric …

Select the correct option to fill up the blanks. <br> (i) _______ are used in detergent formulations and are helpf…