Continuous addition of sugars in ‘fed batch’ fermentation is done to
produce methane
obtain antibiotics
purify enzymes
degrade sewage.
Which of the following plants are used as green manure in crop fields and in sandy soils?
The most famous pesticide of the world is
Biological control of pests is
Bordeaux mixture can be prepared by mixing the copper sulphate with
Which of the following microbe is the source of first antibiotic?