on January 17 at 11:13PM
I correctly selected D and I think I understand why D is correct, but I'm still having a hard time understanding why C is wrong.
Is the main problem with that answer around whether it's "based on the observation that rainwater runoff picks up oil and other pollutants"? Is the fact that the statement in question comes before that information is introduced, or does the order of the statements not matter?
Shunhe on January 30 at 12:31PM