Video Transcript
Which of the following suggestions
would not likely result in a reduction in water pollution in a large river? (A) Banning factories from
disposing of untreated waste. (B) Ensuring the river is
frequently swept for dead fish and animals. (C) Increasing public awareness of
water pollution. (D) Opening more chemical factories
next to the river. Or (E) preventing nearby industries
from discharging cooling water into streams and rivers.
In this question, we must determine
which suggestion would not reduce the water pollution of a river. Let’s have a look at our answer
choices. Answer choice (A) suggests banning
factories from disposing of waste into the river. Chemical pollution can be generated
from factories discharging waste directly into water sources. This causes many issues, including
the possible contamination of the drinking supply and negatively affecting aquatic
life. This can eventually lead to serious
illness when we consume contaminated fish. If this practice were banned, this
would certainly reduce the pollution in the river. Since we need to determine the
suggestion that would not reduce pollution, we can eliminate answer choice (A).
Answer choice (B) suggests sweeping
the river for dead animals. A form of natural pollution stems
from the death of aquatic life. Methane and other toxins are
released into the surrounding water when animals die. By sweeping the river frequently
for dead fish and animals, this would likely reduce water pollution. So, we can eliminate answer choice
(B).
Answer choice (C) suggests
increasing the public’s awareness of the water pollution affecting the river. By doing so, it is possible to
improve public support for the efforts and change behaviors such as littering. This could result in a reduction of
water pollution. So, we can eliminate answer choice
(C).
Answer choice (D) suggests opening
more factories near the river. We have seen that factories near a
water supply can contribute to water pollution. This is often a result of the
intentional or accidental disposal of waste into the water. Establishing more of these
factories would likely only increase the chemical pollution in the river due to this
practice. Since this would not reduce the
water pollution, answer choice (D) is correct.
Let’s have a look at answer choice
(E) just in case. It suggests that cold and cooling
water be prevented from being discharged into the river. Since marine ecosystems rely on a
fine balance and specific temperatures, suddenly dropping the water’s temperature
impacts aquatic life, even very far away from the discharge site. So, answer choice (E) is not the
correct answer.
Therefore, the suggestion that
would not likely result in a reduction in water pollution in a large river is (D):
opening more chemical factories next to the river.
