Rhizobium is a free-living bacterium that fixes atmospheric nitrogen.

Select the correct option to fill up the blanks. <br> (i) _______ are used in detergent formulations and are helpf…

Secondary treatment of the sewage is called biological treatment. Justify the statement and explain the process.</h2&…

Which of the following in sewage treatment removes suspended solids?</h2></div>

Which of the following statements is incorrect regarding beer?

Which one of the following nitrogen fixing root nodule symbiotic is associated with the trees of Alnus and Casuarinas?&l…

Antihaemorrhagic ergot alkaloids are got from _________.</h2></div>

Streptomycin is prepared from ?</h2></div>