▶ Your Answer :
While the author of the reading passage
argues that cloud seeding can have a positive effect on protecting crops from
hail, the lecturer opposes the reading's assertion with counter views.
First of all, the speaker argues that the
claim about experiments in the laboratory is wrong. We need to take a look at
silver iodide in the lab more closely. This is because, in fact, the chemical
can prevent precipitation and negatively affect our environment. According to
the lecture, the chemical even can cause to stop raining and to make a drought
area. Consequently, there is lack of water in the area where damaged by the
chemical. This casts doubt on the author's claim that the chemical can make
light snow forming instead of hail pellets.
Secondly, the lecturer points out that the
argument regarding controlling precipitation is mistaken. This is due to the
fact that this impact of cloud seeding exists almost in several Asian countries.
Specially, in Asian urban cities, the chemical is favorable to their pollution.
Contrary to the Asian urban cities, this chemical rarely affect unpolluted area
in United States. Therefore, cloud seeding scarcely has a positive impact on
protecting crops in the US. This goes against the writer's view that a method controlling
precipitation in some urban areas should be effective in farms in the US.
Finally, the professor contends that the
opinion concerning decrease of hail damage is flawed. It is hasty to conclude
just by looking at this damage. This is mainly because, the damage by hail is
not actually monitored and checked in a farming region. However, regions
adjacent the area using cloud seeding are more damaged by the method.
Moreover, this can cause natural variations that is very harmful for our
society. This contradicts the idea presented in the reading passage that the
special way can decrease severe hail damage compared to previous years. |