E X E R C I S E 2: Choose the correct answer according to the passage.
1. Cosmological models of the universe
A) are based on unquestionable facts and are always extremely accurate
B) are changed whenever new information shows them to be wrong
C) show us exactly what the universe looks like from any perspective
D) often contradict each other and cause much debate among scientists
E) give us a clear and unchanging picture of the exact nature of the universe
2. One of the bases of the cosmological principle is that
A) people who live near the edge of the universe see things in a very different way
B) the universe is essentially an irregular body held together by a few common laws
C) the Earth is at the centre of the universe, and thus, the most important thing
D) contradictions to models of the universe are in violation of the laws of physics
E) regardless of where a person may be, the universe looks much the same
3. Cosmologists believe that
A) the infinite nature of the universe can be explained with geometry
B) space is either endless or has some special geometric properties
C) the universe, as we know it, is continually shrinking
D) whatever the nature of the universe, our role in it doesn't really matter
E) it's difficult to define the universe as it's constantly getting larger
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