खाद के प्रयोग में मिट्टी की मात्रा कैसी रखनी चाहिए?
How should the amount of soil be kept in a fertiliser experiment?
Explanation opens after your attempt
Correct Answer
A. समानThe same
Concept
Keeping the amount of soil the same makes the effect of fertiliser clear. It is a controlled variable.
Why this answer is correct
The correct answer is A. समान / The same. Keeping the amount of soil the same makes the effect of fertiliser clear. It is a controlled variable.
Exam Tip
मिट्टी की मात्रा समान रखने से खाद का प्रभाव स्पष्ट रहता है। यह नियंत्रित चर है।
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