Class 9

NATURAL RESOURCES question bank (Science)

Practice 233 free Class 9 Science - NATURAL RESOURCES questions with answers and step-by-step solutions.

Q1.

How are living organisms dependent on the soil? Are organisms that live in water totally independent of soil as a resource?

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Q2.

The process of nitrogen-fixation by bacteria does not take place in the presence of

(A)
molecular form of hydrogen
(B)
elemental form of oxygen
(C)
water
(D)
elemental form of nitrogen
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