<p>Passage 1 </p>
<pre><code> Any wildlife biologist can tell you how many deer
</code></pre>
<p>a given area can supporthow much browse there is<br>
for the deer to eat before they begin to suppress the<br>
Line reproduction of trees, before they begin to starve in<br>
5 the winter. Any biologist can calculate how many<br>
wolves a given area can support too, in part by<br>
counting the number of deer. And so on, up and<br>
down the food chain. Its not an exact science, but<br>
it comes pretty closeat least compared to figuring<br>
10 out the carrying capacity of Earth for human beings,<br>
which is an art so dark that anyone with any sense<br>
stays away from it. </p>
<p>Passage 2 </p>
<pre><code> Estimates of the number of humans that Earth can
</code></pre>
<p>sustain have ranged in recent decades from fewer than<br>
15 a billion to more than a trillion. Such elasticity is prob-
ably unavoidable, since carrying capacity is essentially<br>
a subjective term. It makes little sense to talk about carry-
ing capacity in relationship to humans, who are capable of<br>
adapting and altering both their culture and their physical<br>
20 environment, and can thus defy any formula that might<br>
settle the matter. The number of people that Earth can<br>
support depends on how we on Earth want to live, on<br>
what we want to consume, and on what we regard as<br>
a crowd. </p>
<p>6 Both passages support which of the following conclusions about Earths carrying capacity for humans?</p>
<p>(A) It is routinely underestimated by biologists.<br>
(B) It cannot be easily determined, given numerous variables and unknowns.<br>
(C) It has only recently become the subject of considerable scientific debate.<br>
(D) It is a valuable concept despite its apparent shortcomings.<br>
(E) It has increased as a result of recent technological innovations. </p>
<pre><code> When the show was over I sat in my seat while children
</code></pre>
<p>clambered over me, making no comments on anything they<br>
50 had just seen or heard. They were pestering their keepers<br>
for eatables and further entertainments. An effort had been<br>
made to get their attention, to take it away from canned<br>
drinks and potato chips and fix it on various knowns and<br>
unknowns and horrible immensities, and it seemed to have<br>
55 failed. A good thing, too, I thought. Children have a natural<br>
immunity, most of them, and it shouldnt be tampered with.<br>
As for the adults who would deplore it, the ones who pro-
moted this show, werent they immune themselves to the<br>
extent that they could put in the echo-chamber effects,<br>
60 the music, the solemnity, simulating the awe that they<br>
supposed they ought to feel? Awewhat was that sup-
posed to be? A fit of the shivers when you looked out<br>
the window? Once you knew what it was, you wouldnt<br>
be courting it.
23 The phrase horrible immensities (line 54) primarily indicates</p>
<p>(A) exaggerated information<br>
(B) unforeseen events<br>
(C) historical monstrosities<br>
(D) controversial debates<br>
(E) incomprehensible realities</p>