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.

In a balanced chemical equation or physical formula for 'Useful Bacteria (Lactobacilli, Rhizobium)', what conservation law is satisfied?


(A)
Conservation of Mass, Momentum, or Energy applicable to Useful Bacteria (Lactobacilli, Rhizobium)
(B)
Creation of new atoms
(C)
Disappearance of mass without energy
(D)
None of these
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Q2.

Which diagram is required in the SSC Board Exam when explaining 'Useful Bacteria (Lactobacilli, Rhizobium)'?


(A)
A neatly labelled scientific ray diagram / anatomical schematic for Useful Bacteria (Lactobacilli, Rhizobium)
(B)
An unlabelled sketch
(C)
No diagram is ever needed
(D)
A decorative drawing
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