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Which measurement is useful for comparing the growth of plants?

Answer and explanation

Correct answer: Height of the plants

The direct answer is A: the height of the plants. Growth means an increase or change in size over time, so a useful growth measure must be observable, measurable, and comparable. Plant height can be recorded numerically with a unit such as centimetres. Measure each plant from the same reference point, at the same time intervals, using the same method, and compare the values or changes. Option A is correct because it gives objective data related directly to growth. Option B is wrong because beauty is a personal judgment and has no fixed measurement here. Option C is wrong because a student’s preference describes an opinion, not plant growth. Option D is wrong because pot names identify containers but do not measure how plants grow. Other measures such as number of leaves or mass could also be useful if measured consistently, but they are not offered. Exam cue: for growth, choose a numerical feature that can be measured repeatedly.

Related tags

Plant GrowthHeightMeasurementScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

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