Science

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Two students were testing the amount of fertilizer that would best promote the growth
of strawberries in a garden. Which of the following could be an unavoidable source of experimental error?
A. length of the study
B. variation in the strawberry plants
C. the cost of watering the plants
D. fertilization during the study

  • Science -

    B. is the only one that make sense to me.

  • Science -

    *makes

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