EASY
12th CBSE
IMPORTANT
Earn 100

Which one of the following is not a nitrogen-fixing organism?

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Important Questions on Microbes in Human Welfare

MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 10 - Microbes in Human Welfare>MULTIPLE-CHOICE QUESTIONS>Q 14
Big holes in Swiss cheese are made by a
EASY
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 10 - Microbes in Human Welfare>MULTIPLE-CHOICE QUESTIONS>Q 15
The residue left after methane production from cattle dung is
EASY
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 10 - Microbes in Human Welfare>MULTIPLE-CHOICE QUESTIONS>Q 16
Methanogens do not produce
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 10 - Microbes in Human Welfare>MULTIPLE-CHOICE QUESTIONS>Q 17
Activated sludge should have the ability to settle quickly so that it can
EASY
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 10 - Microbes in Human Welfare>VERY SHORT ANSWER TYPE QUESTIONS>Q 1
Why does 'Swiss cheese' have big holes?
EASY
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 10 - Microbes in Human Welfare>VERY SHORT ANSWER TYPE QUESTIONS>Q 2
What are fermentors?
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 10 - Microbes in Human Welfare>VERY SHORT ANSWER TYPE QUESTIONS>Q 3
Name a microbe used for the production of statins. How do statins lower blood cholesterol level?
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 10 - Microbes in Human Welfare>VERY SHORT ANSWER TYPE QUESTIONS>Q 4
Why do we prefer to call secondary wastewater treatment as biological treatment?