12th Standard CBSE Biology NCERT Exemplers
CBSE 12th Standard Biology Subject Microbes in Human Welfare Ncert Exemplar 3 Marks Questions 2021
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CBSE 12th Standard Biology Subject Microbes in Human Welfare Ncert Exemplar 3 Marks Questions 2021
12th Standard CBSE
-
Reg.No. :
Biology
Time :
01:00:00 Hrs
Total Marks :
15
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What is the role of microbes in sewage treatment plant?
(a) -
Explain why some microorganisms are called biofertilizers.Give two examples.
(a) -
What are methanogens? How do they help to generate biogas?
(a) -
What are methanogens? Name the animals in which methanogens occur and the role they play there
(a) -
In which way have microbes played a major role in controlling diseases caused by harmful bacteria?
(a)
3 Marks
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