Claim: Lead in drinking water will harm humans
Which of the following pieces of data will be best evidence to support this claim?After using water that contains high levels of lead, people started experiencing joint pain.
b. After using water that contains high levels of lead, people noticed that their toothbrush is stained yellow.
c. After using water that contains high levels of lead, people reported a metallic taste.
d. After using water that contains high levels of lead, people reported leaking pipes.
Definitely not D. Probably not B, because the question asks about humans. A or C, I am inclined towards A.
I vote for A also.
Again, no data= no answer. You can see the data, we can't.
The best piece of data among the given options to support the claim that lead in drinking water will harm humans is option (a) "After using water that contains high levels of lead, people started experiencing joint pain."
Explanation:
To determine the harmful effects of lead in drinking water on humans, we need to look for evidence that directly relates to the claim. In this case, joint pain is a well-known symptom of lead poisoning. When lead enters the bloodstream and accumulates in the body, it can lead to a variety of health problems, including joint pain.
On the other hand, options (b) "After using water that contains high levels of lead, people noticed that their toothbrush is stained yellow," (c) "After using water that contains high levels of lead, people reported a metallic taste," and (d) "After using water that contains high levels of lead, people reported leaking pipes" do not directly provide evidence of harm to humans as a result of lead exposure. While they may indicate potential issues with the water supply or the presence of lead, they do not establish a direct link between lead in drinking water and harm to human health.
Therefore, the best evidence among the given options is the occurrence of joint pain after using water that contains high levels of lead.