■ Direction You have 20 minutes to plan and write your response. Your response will be judged on the basis of The quality of writing and on how well your response presents the points in the lecture and the relationship to the reading passage. Typically, an effective response will be 150 to 225 words. ■ Question Summarize the points made in the lecture you just heard, explaining how they cast doubt on the points made in the reading
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▶ Topic : carbon sequestration |
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▶ Your Answer :
The
lecturer argues that the methods of reducing the amount of CO2 in atmosphere
are not working. This contradicts the reading passage’s claim that CO2 in
atmosphere can be reduced by storing in the ground or oceans.
First,
the lecturer contends that adding iron to the ocean does not cause the permanent
increase of phytoplankton. If the number of phytoplankton multiplies quickly,
the ocean runs out of Nitrogen and results the decrease in the number of
phytoplankton. Also, according to the study, fertile amount of iron in the
ocean can store only three percent of CO2 in atmosphere.
Next,
making artificial wetlands is not effective way to reduce CO2 in atmosphere.
According to the research, artificial wetlands store CO2 twenty three percent
less than natural ones. In addition, it takes long to develop artificial
wetlands, so it might be too late to set ideal ecosystem.
Finally,
the lecturer asserts that storing CO2 in coal mines can be problematic. If coal
bonds with CO2, methane release. The worse thing is that methane also has CO2.
Furthermore, not all CO2 attach to coal. Some coals leak out to atmosphere so the
quantity of CO2 cannot be reduced.
Words: 195
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질문있습니다! 통합형과 독립형 단어수는 제약이 없는건가요?