Ascientist conducted an experiment to test the hypothesis that maple seeds exposed to acid dv
rain will take longer to germinate than seeds exposed to normal rain, which has a ph of 5.6. the
scientist set up four groups, each containing 200 maple seeds. the water used for each group had
a different ph value: 5.6. 4.0, 3.0, and 2.0. all other conditions were kept the same. after ten
days, the number of seeds that had germinated in each group was counted.
identify the dependent variable in this experiment