▶ Your Answer :
In the reading passage, there is ample
support for the author’s claim that there are some explanations for vitrified
walls. However, the professor gives several reasons as rebuttal to the author’s
claim.
First, the professor contends that signal
fires have nothing to do with verification. Given that there are just few
places where signal fires were hanging and, whereas, the entire upper side of
the walls are vitrified, fires could not be the reason. This casts doubt on the
reading passage’s assertion that fires set up for communication with others
resulted in vitrification.
Second, the professor insists that it is
not plausible lightning caused the vitrified walls. First of all, the area
vitrified are too extensive to be struck by lightning. Next, there is a
possibility of striking the same place. Plus, the walls are old enough to get
cracked. This refutes the reading passage’s suggestion that cracks and uneven
feature of the vitrified walls represents of lightning.
Finally, the professor argues that it is
impossible to build the forts with the stones once covered by lava. The
distance from the volcanic area to the place where the forts are is too far to
shift the rocks. In addition to that, they would have lacked of skills to move
them. This counters the reading passage’s idea that people erected the forts by
using vitrified stones by lava.
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