To solve
the problem resulted from oil spill disasters,
experts have found out the fact that a certain type of
bacteria, called algae, can break down the oil. The author of the reading
passage argues that the use of the bacteria in
cleaning up the oceans and marine ecosystme ecosystems
has some flaws: that it is time consuming,
algae blooms, and limited effect depending on the depth of the ocean (이렇게 하나하나 나열하실 필요는 없습니다. 그냥 the author gives three points to support his argument, 라고 적으셔도
됩니다.) However, the speaker rejects each
point of these.
First, the speaker
says that slow speed of algae’s breaking up the oil is not a serious problem after all. According to him, there are some alternative ways to
supplement the drawback. One of the ways is the use of dispersants, which
degrade the oil faster. This can promote the algae’s growth as well. Thus,
apart from degrading the oil by using the dispersants, we can have more algae
that can break up oil into small pieces. Then, we can purify the damaged water
more efficiently. Thus, this repudiates the author’s assertion that because
algae eat up and degrade the oil too gradually, the
utilizing it in cleaning the oceans is not efficient.
Second, the narrator
also explains that regulating the amount of fertilizer according to the type
and size of damaged water can prevent algae blooms. This refutes the author’s
statement that the use of fertilizer triggers algae
blooms while reducing the amount of oxyzen oxygen.
she also mentions the real an example of
this to support her opinion. In the 1980s’,
people actually used meticulously calculated amounts of fertilizers to clean up the ocean, and algae blooms did not
happen. Thus, algae blooms can be prevented by using proper amounts of
fertilizer.
She finally concludes that there is nothing but algae
which can break down the oil in the deep ocean, cold environment. Though it is true that the the
bacteria’s speed of degrading the oil can be slower in that environment, they
end up manading managing their job,
cleaning up the oil. Therefore, this refutes the writer’s argument that using the bacteria in order to getting get rid of the oil in the cold environment might not
be effective.