by noah Tue Apr 09, 2013 7:19 pm
In this inference question (A) is supported by lines 45-51 where we find the author comparing our attitude towards material and cultural wealth to our attitude towards Earth's biota (and this marks the first time in my life that I've ever read or typed the word "biota"). The second half of the sentence says that unlike material and cultural wealth, we take for granted, don't study, and don't appreciate the value of Earth's biota. The dependent clause "which we understand...everyday lives," helps explain the difference, and thus we can infer that it's our understanding of the value of cultural/material things that helps us not take them for granted.
(B) is unsupported since the passage does not say that biota is a source of cultural wealth. Be careful not to confuse heritage with cultural wealth. Heritage is our history, cultural wealth is things we value in our culture--perhaps we don't value history.
(C) is out of scope. There's no discussion of sacrificing material and cultural wealth.
(D) is a comparison trap. The author doesn't suggest that one is more important, and definitely doesn't suggest that the length of time it took to develop is an indication of this supposed comparison.
(E) is out of scope. There's no discussion of the relationship between material and biological wealth.