Which is used as biofertilizer?</h2></div>

<p><span>Why are some microorganisms like bacteria and fungi are important to humans? </span>…

Which one is a biological in sewage treatment?<span><br> </span></h2></div>

The primary treatment of sewage water involves.</h2></div>

Which of the following statement is incorrect?</h2></div>

Biofertilizer is?</h2></div>

Which of the following is used in the preparation of soy sauce?</h2></div>

Which of the following is not organic waste?