Pyrolysis of wood yields only yields alcohol.

The primary treatment of removal of:</h2></div>

Why is there a need to switch to organic farming?

After Penicillin, other antibiotics were also purified from other microbes.

Which one of the following is not used as biofertiliser?</h2></div>

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

Which of the following statements is not true regarding BOD?

<span>Third generation pesticides are ?</span></h2></div>