.............. is an alternative source of energy.</h2></div>

Streptokinase is used for _______</h2></div>

Given below is the flow chart of sewage treatment. Identify A, B, C and D and select the correct option. <br…

Which of the following antibiotics is not correctly matched with the source from which it is obtained?</h2></di…

<span>How do bacteria and cyanobacteria increase soil fertility? Explain.</span></h2></div…

A common biocontrol agent for plant diseases is?</h2></div>

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

Which of the following plant is used as green manure?</h2></div>