▶ Your Answer : The
reading passage states the main idea of the reading: the benefits of
biopolymers, however, the listening passage refutes this idea by providing
several counterexamples.
To begin with,
the author asserts that biopolymers have a strong biodegradability. He supports
his idea by mentioning that biopolymers disintegrate easily overtime, turning
into carbon dioxide, methane, and other compounds. In contrast, the speaker
refutes his assertion by stating that biopolymers do not disintegrate easily.
The professor says that biopolymers can only disintegrate when two conditions:
(humidity and temperature) is satisfied.
Furthermore,
the author contends that biopolymers are sustainable. He maintains his idea by pointing
out that biopolymers do not jeopardize future generation’s natural resources.
On the contrary, the listening passage contradicts this contention by stating
that biopolymers contribute bad influences on the environment. It is said that
many crops are demanded and to produce a lot of energy, the pollution will be
the result of it.
Last, the passage argues that biopolymers are produced
on a large scale and sturdy. In the construction industry, they have been found
in many products such as clothes or food. Conversely, the lecture challenges
this argument by mentioning that biopolymers’ sturdiness is unproven. Actually,
they are very vulnerable to heat and moisture. This leads to their limited
access. |