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18 Mar 2026, 19:00
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
69% (01:48) correct
31%
(02:03)
wrong
based on 159
sessions
History
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Many health experts have recently suggested that plastic water bottles begin to break down over time, releasing a chemical called bisphenol A that can cause heightened risks of diabetes and cancer. The experts found that this breakdown usually begins a year into the bottle’s use. Thus, people should stop using plastic water bottles after a year.
Which of the following, if true, would most weaken the conclusion above?
A. The health experts found that among those using plastic bottles that had begun to release bisphenol A, the incidence of diabetes and cancer was no higher than among people who did not.
B. The health experts did not investigate the possible effects of other chemicals used in making plastic bottles, such as epoxy resins.
C. The health experts failed to determine why the breakdown of the plastic usually began only after the bottles had been in use for a year.
D. The health experts found that bottles stored in cool, safe places were as likely to break down and release bisphenol A as were bottles that were stored in hot places and subject to physical damage.
E. The health experts found that after eighteen months of use, greater length of the usage of a water bottle did not correlate with a higher level of bisphenol A being present.
Which of the following, if true, would most weaken the conclusion above?
A. The health experts found that among those using plastic bottles that had begun to release bisphenol A, the incidence of diabetes and cancer was no higher than among people who did not.
B. The health experts did not investigate the possible effects of other chemicals used in making plastic bottles, such as epoxy resins.
C. The health experts failed to determine why the breakdown of the plastic usually began only after the bottles had been in use for a year.
D. The health experts found that bottles stored in cool, safe places were as likely to break down and release bisphenol A as were bottles that were stored in hot places and subject to physical damage.
E. The health experts found that after eighteen months of use, greater length of the usage of a water bottle did not correlate with a higher level of bisphenol A being present.
18 Mar 2026, 23:37
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I am going with A.
plastic bottles breakdown in a years use --> this breakdown releases BPA --> this causes diabetes and cancer --> therefore stop using water bottle over a year.
Option A tells the incidence of diabetes and cancer after getting exposed to BPA is no higher than among people who did not get exposed to BPA. Therefore something else causes diabetes and cancer. Therefore we don't need to stop using water bottle after a year.
plastic bottles breakdown in a years use --> this breakdown releases BPA --> this causes diabetes and cancer --> therefore stop using water bottle over a year.
Option A tells the incidence of diabetes and cancer after getting exposed to BPA is no higher than among people who did not get exposed to BPA. Therefore something else causes diabetes and cancer. Therefore we don't need to stop using water bottle after a year.
19 Mar 2026, 02:33
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P: Expert says Plastic water bottles break down over time -> release chemical -> which can risk diabetes/cancer
P: Release of chemical happen after 1 year
C: People to stop using plastic water bottles.
To weaken, if we can show that there are other causes of diabetes/cancer OR if we can show that chemical release is not causing diabetes/cancer.
IMO A
P: Release of chemical happen after 1 year
C: People to stop using plastic water bottles.
To weaken, if we can show that there are other causes of diabetes/cancer OR if we can show that chemical release is not causing diabetes/cancer.
IMO A
ExpertsGlobal5
