A student compares plant growth with and without fertilizer. What should be kept similar?

Type: MCQ • Marks: 1

A. The conclusion written by the student

B. Plant type, light, water, and growing time

C. Only the plant labels

D. The final height of every plant

Explanation

Keeping other growing conditions similar makes fertilizer a fairer factor to test.

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Class 9th Science (MCQ)

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