Which of the following is the examples of biofertilizers?</h2></div>

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

Sewage water can be purified for recycling with the action of</h2></div>

Give the advantages of biogas.</h2></div>

First antibiotic discovered was ____________.</h2></div>

<i>Azolla </i>is used as a biofertilizer because <br> </h2></div>

Chemicals that inhibit the growth of other harmful microbes by affecting their life processes are called</h2></…

What is the height of the concrete tank used in biogas plant?