Maharashtra Board - Class 9

Useful and Harmful Microbes question bank (Science and Technology Part 2)

Practice 18 free Maharashtra Board - Class 9 Science and Technology Part 2 - Useful and Harmful Microbes questions with answers and step-by-step solutions.

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Q1.

What is the fundamental scientific law or definition of 'Useful Bacteria (Lactobacilli, Rhizobium)' in MSBSHSE SSC Science?


(A)
The verified textbook definition and SI unit for Useful Bacteria (Lactobacilli, Rhizobium)
(B)
An informal colloquial term
(C)
An obsolete hypothesis
(D)
None of these
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Q2.

Which device, organ, or reaction in daily life works on the principle of 'Useful Bacteria (Lactobacilli, Rhizobium)'?


(A)
The classic application described in Useful and Harmful Microbes (Useful Bacteria (Lactobacilli, Rhizobium))
(B)
A perpetual motion machine
(C)
An imaginary mechanism
(D)
None of these
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