Jake and Aisha conducted an experiment together to test the effects of fertilizer runoff on the amount of dissolved oxygen in a lake. They each created a graph from the results.
mc021-1.jpg mc021-2.jpg
Graph 1: Jake’s Graph
Graph 2: Aisha’s Graph
Jake concluded that the runoff had little effect on the dissolved oxygen levels, and Aisha concluded that the runoff had a major effect on dissolved oxygen levels. What is the most likely reason that Jake and Aisha formed different conclusions?
Each person used different references for comparison.
Jake recorded the wrong measurements on two days.
Aisha converted the units before creating her graph.
The students used different ranges for their y axes.
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Answer:
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ANSWER :
Jake and Aisha through their experiments got different results. It may be because :
The students might have used various ranges for 'y' axes to plot their graphs.
Due to this, Jake through the experiment got the result that the oxygen level in the lake was affected in little amount.
Whereas Aisha through his experiment concluded that the oxygen level in the lake was affected severely.
Both the students experimented in the same source with correct measurements.
So the correct option will be 'the students used different ranges for their y axes'.
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