Geologists recently discovered marks that closely resemble worm tracks in a piece of sandstone. These marks were made more than half a billion years earlier than the earliest known traces of multicellular animal life. Therefore, the marks are probably the traces of geological processes rather than of worms.
Which one of the following, if true, most weakens the argument?
(A) It is sometimes difficult to estimate the precise age of a piece ofsandstone . - WRONG. Irrelevant.
(B) Geological processes left a substantial variety of marks in sandstone more than half a billion yearsbefore the earliest known multicellular animal life existed. - WRONG. Strengthens actually.
(C) There were some early life forms other than worms that are known to have leftmarks that are hard to distinguish from those found in the piece of sandstone. - WRONG. Another possible reason for those marks
(D) At the place where the sandstone was found, the only geological processes that are likely to mark sandstone
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Which one of the following, if true, most weakens the argument?
(A) It is sometimes difficult to estimate the precise age of a piece ofsandstone . - WRONG. Irrelevant.
(B) Geological processes left a substantial variety of marks in sandstone more than half a billion yearsbefore the earliest known multicellular animal life existed. - WRONG. Strengthens actually.
(C) There were some early life forms other than worms that are known to have leftmarks that are hard to distinguish from those found in the piece of sandstone. - WRONG. Another possible reason for those marks
(D) At the place where the sandstone was found, the only geological processes that are likely to mark sandstone
...
Statistics : Posted by unraveled • on 11 Oct 2017, 22:40 • Replies 6 • Views 4523
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