पौधे पर प्रकाश का प्रभाव जांचते समय पानी की मात्रा कैसी रखनी चाहिए?
How should the amount of water be kept while testing the effect of light on a plant?
Explanation opens after your attempt
C. समान रखनी चाहिएIt should be kept the same
Concept
Keeping water amount the same allows only the effect of light to be observed. Water is a controlled variable here.
Why this answer is correct
The correct answer is C. समान रखनी चाहिए / It should be kept the same. Keeping water amount the same allows only the effect of light to be observed. Water is a controlled variable here.
Exam Tip
पानी की मात्रा समान रखने से केवल प्रकाश का प्रभाव देखा जा सकता है। पानी यहां नियंत्रित चर है।
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