Which of the following is a biofertilizer?</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 …

Which bacterium is known to form crystal protein?</h2></div>

Match the following columns and select the correct option.<br> <table class="wysiwyg-table"><tb…

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

What are biofertilisers? Give two examples. </h2></div>

The major gas in biogas production is ___________.</h2></div>

Write the name of bacteria which converts milk to curd.</h2></div>