Track can be good for your health because it keeps you in shape and movies so when you have to walk for a long amount of time it will be easier on you
Answer:
No; the study is based on a volunteer sample, which may be very different from a randomly selected one.
Explanation
Her plan cannot be effective because she could base her own judgenent on samples that was randomly selected for consideration.
<span>It
is safe to swim in pathogen-contaminated water as long as you do not
swallow any of the water.
-False
</span>
I believe the answer is D