▶ Your Answer : 단어수 289
According to the
writer, cloud seeding, which uses a way of altering the temperature or chemical
composition of clouds, looks like a viable solution to large hailstorms that
cause significant damage to crop and has been a major concern for farmers for a
long time in the U.S. Meanwhile, the professor in the listening contradicts
this.
First, the writer in
the reading makes claims that not only can the technique that adds silver
iodide to moist air, which increases the speed of processing ice formation, be applied
to natural environment, but also prevent large water droplets from falling down,
with silver iodide making cloud ice crystals quickly. In contrast, the
professor argues that since this experiment has implemented in lab, it is
difficult to predict the weather because of natural characteristics with
dynamic activities. In addition, adding silver iodide to moist air can cause disaster
damage to farmland.
Secondly, it is said in the reading that the
success in cloud seeding in China such as Shanghai and Beijing indicates that it
has a possibility of controlling weather in the U.S. On the contrary, the
professor in the listening maintains that while cloud seeding succeeded in
China, it can cause air pollution in China, with air in the U.S also being
affected by it.
Lastly, according to
the writer, the decrease in the amount of hail in Kansas, in which people has
used cloud seeding in order to control weather, is due to their cloud seeding
activities. Meanwhile, the professor in the listening says that success in controlling
the weather in Kansas is due to not cloud seeding but weather characteristics
in Kansas, so it is not related to local cloud seeding.
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