Gastroenteritis is caused by</h2></div>

Which of the following is not a free-living Nitrogen-fixing bacteria?

In paddy fields, biological nitrogen fixation is chiefly brought about by.</h2></div>

Smack is chemically?</h2></div>

Which of the following statements is incorrect regarding sausages?

Antifeedant compound is extracted from</h2></div>

List two advantage of using biogas.</h2></div>

A biofertilizer ________.</h2></div>