▶ Your Answer :
1.
The reading
passage provides several evidences that harmful species, zebra mussels, can be
properly controlled by some attempted. However, the professor in the lecture
refutes the author’s claim and pointed out that human cannot get rid of this
without causing side effects.
First of all, the professor argues that the
toxic of the natural predator, round goby, could harm human who consume it.
Hence, the toxin simply transmits to human, top of the food chain system. This
rebuts authors claim that by using natural predators, people can safely remove
the threats of zebra mussels.
2.
The reading passage provides several evidences
that wind power can be eco-friendly and efficient replacement for the
ready-made expensive power plants. However, the professor in the lecture
refutes the author’s claim and pointed out the fact that efficiency is not
proven.
First
of all, professor asserts that wind mill actually harms the nature more than
the author’s thought. Unlike the reading mentioned, most of the ranges where
the wind mill located are affected by the turbines and other equipments. In
other words, it cannot give a minimal impact. This contradicts the author’s
assertion that the wind power only affects 5% of the area it occupied.
3.
The
reading passage provides several evidences that the fish farming has some
drawbacks on the ecosystem. However, the professor in the lecture refutes the
author’s claim and points out that the aquaculture could also be reserved while
fish farming is flourishing.
First
of all, the lecturer mentioned a government can regulate in a way to preserve
the coastal ecosystem. Therefore, people can accomplish both of productivity
and natural preservation. This counters the author’s assertion that agriculture
in a coastal area destroys the local flora, and finally affects badly on the
ecosystem.
Second,
according to the professor, fishes cannot live in a dense environment due to
its nature. If so, the fishes grow in the area might die or might be
uncompetitive as a product. Therefore, farmer won’t make this happen. This
rebuts the author’s point that dense population of fishes harms the nature
badly as human wastes does.
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