▶ Your Answer :
One of the important energy sources is the coal which is responsible for half of the
electricity production in the states. The passage has a positive view of it, whereas the professor thinks in the negative way.
To start off, the passage mentioned that
it is a promising development to convert coal into gas. The reason is that it
removes virtually all of the impurities from the coal which means they have no
emission. On the other hand, the professor disagrees with the idea because when
the coal heated there fossil fuel emission which is really harmful for the
environment. Plus, it takes a huge amount of water to rid the impurity.
Second of all, the passage claims that
the alternative method is to utilize the form of static electricity; it is
beneficial that can extract the pollutant. On the contrary, the professor contends that collection plate can only
absorb the ash and soot. It is not helpful to reduce the carbon dioxide
emission, so to speak. The carbon dioxide contains greenhouse gases that occur
the climate change. Hence, it is a minor problem of using static electricity.
Finally, the passage argues that it is
also beneficial to use fabric filters for diminishing coal’s effect since the
fabric filters are capable of collecting liquid and solid waste. As a result,
it will filter out harmful particles before it is released into the air.
However, the professor pointed out that it is not efficient for the long term.
This is because they need maintenance in a regular basis. In addition, it takes a
lot of money and energy to keep the filter in good condition. Therefore, there
is no efficiency to use a fabric filter to reduce the coal effect. |