▶ Your Answer :
In the reading passage, there is ample
support for the reading passage's claim that there are some plausible theories
about what caused the red rain in Kerala. However, the professor in the lecture
gives several reasons as a rebuttal to the author's point.
First, the professor contends that the explanation that red rain was triggered
by the death of bats is far-fetched. If the red rain was caused by bat's blood,
the significant number of bats would have died at that time. However, the
recent study has not found the large amount of remains of the bats, such as
fossils of their wings or bones. This casts doubt on the reading passage's
claim that the death of bats caused the Reddish-brown rain.
Next, the professor asserts that the fact that the volcanic eruption in
the Philippines is the reason for the phenomenon is not disproven. The red rain
occurred only in Kerala. If it had been
for the Philippine volcano, the Philippines also would have experienced red
rain. In addition, the red rain did not occur in countries located between the
Philippines and India. This challenges the reading passage's claim that the red
rain was the result of the low pH of the mixture that contains the dust and
rain.
Finally, the professor argues that it does not make sense to consider
chemical pollution as the reason for the red rain. This is because there were
few factories in the region. Also, the red rain only triggered in Kerala, not
in the city where the factories were concentrated. This counters the reading
passage's claim that the red rain was occurred by pollutants combining with
moisture in the atmosphere.
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