Give an example for a microbial biocontrol agent.</h2></div>

What is true about Bt toxin?</h2></div>

Which bacterium is used extensively as biopesticide?</h2></div>

Raw material used in formation of producer gas is</h2></div>

Which of the following is formed during the process of anaerobic fermentation?</h2></div>

Biogas is produced by:</h2></div>

The magnitude of BOD of wastewater describes ?</h2></div>

The fermenting agent of dosa and idli is</h2></div>