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질문: 첫번째 리스닝에서 dispersants? dispersence? 사용이라고 했는데 몰라서 못썼어요ㅠㅜ (답지없어서 확인이 안되요) 혹시 아시나요? In the given set of infomation, the lecture and the reading passage deal with using bacteria to clear up oil spills. The lecturer casts doubt on the reading passage's claim on possible drawbacks with using bacteria, by presenting three counterarguments.
First , the reading passage claims that comlete cleanup of oil spill using bacteria is time consuming than any other oil removal methods. However, the lecturer argues that this claim is disputable. This is because a specific method can be adopted to break up oil into small droplets, making it easier and faster for bacteria to remove oil spills.
Sencond, according to the reading passage, algae bloom, which depeletes oxygen in water, is caused by using fertilizer to make bacteria to function. However, the lecturer contends that this claim is disputable. To be specific, fertilizer is controlled through mathemetical models that determine the amount released. Moreover, bacteria successfully removed the oil spill in the past without causing algae bloom.
Lastly, the lecturer disagrees the reading passage's claim that oil spill in the deep ocean can't be removed by bacteria due to low temperature. He argues that as there are no waves in the deep ocean, bacteria is the only way to remove oil spills. |