2. According to the passage , the fossil record of the Proterozoic eon is
(A) highly regarded because it preserves the remains of many kinds of organisms
(B) less informative than the fossil record of more recent periods
(C) very difficult to interpret due to damage from bacteria
(D) more useful to researchers than otheraspects of the rock record
3. The word scarce in line 4 is closest in meaning to
(A) ancient
(B) tiny
(C) available
(D) rare
4. It can be inferred from the passage that the principle of uniformitarianism indicates that
(A) similar conditions produce similar rock formations
(B) rock layers in a given region remain undisturbed over time
(C) different kinds of sedimentary rocks may have similar origins
(D) each continent has its own distinctive pattern of sediment layers
5. The word resemble in line 14 is closest in meaning to
(A) result from
(B) penetrate
(C) look like
(D) replace have similar origins
6. According to the passage , the layers in varves are primarily formed by
(A) fossilized bacteria
(B) pieces of ancient dropstones
(C) a combination of ancient and recent sediments
(D) annual cycles of sediment transport and deposition
7. The phrase the other in line 17 refers to another
(A) annual cycle
(B) glacial lake
(C) layer of sediment
(D) season
8. According to the passage , the presence of dropstones indicates that
(A) the glacial environment has been unusually servere
(B) the fine-grained sediment has built up very slowly
(C) there has been a global ice age
(D) coarse rock material has been carried great distances
9. Why does the author mention Canada, North America, Africa, India, and Europe in lines 23-24?
(A) To demonstrate the global spread of dropstones
(B) To explain the principles of varve formation
(C) To provide evidence for the theory that there was a global ice age in the early Proterozoic eon
(D) To illustrate the varied climatic changes of the Proterozoic eon in different parts of the globe
10. Which of the following terms is defined in the passage ?
(A) fossil record (line 3)
(B) laminae (line 13)
(C) varves (line14)
(D) glacial episodes (line 28)
PASSAGE 92 ABDAC DCCCC
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