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 happens to the rate or equilibrium when environmental factors alter 'Useful Bacteria (Lactobacilli, Rhizobium)'?


(A)
The systematic response predicted by Le Chatelier's / thermodynamic / biological principles (Useful Bacteria (Lactobacilli, Rhizobium))
(B)
Instantaneous complete cessation
(C)
Chaotic random behavior
(D)
No change whatsoever
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Q2.

In cellular genetics or modern biotechnology, how does 'Useful Bacteria (Lactobacilli, Rhizobium)' drive innovation?


(A)
Through recombinant DNA, stem cell therapy, or eco-friendly power generation (Useful Bacteria (Lactobacilli, Rhizobium))
(B)
By degrading the environment
(C)
By rejecting scientific inquiry
(D)
None of these
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