What are the dragonflies use to get rid of?

Which shape of bacteria has been shown in the following diagram?

Farmers have reported 50% higher yield of rice by using which bio-fertilizer?</h2></div>

Name any two species of fungus, which are used in the production of the antibiotics.</h2></div>

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

How can sewage be used to generate biogas? Explain.</h2></div>

What is the common name of Saccharomyces ellipsoidens?

Name the enzyme produced by Streptococcus bacterium. Explain its importance in medical science.</h2></div>