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A student wonders if adding fertilizer to the soil will make tulips grow faster. The student’s hypothesis states, “If fertilizer is added to the soil, then the tulips will grow faster, because fertilizer adds nutrients to the soil.” Which of the following variables is the independent variable?

Respuesta :

the fertilizer is the independent variable.

Answer: Fertilizer

Explanation:

Independent variable can be defined as the factor which can be controlled by the person performing the experiment.

The experimenter can control whether he will put fertilizer in soil or not. The growth of tulips will depend on the fertilizer as it is a source of nutrient to the plant.

here, the hypothesis will be either accepted or rejected based on the result of experiment.