▶ Your Answer : What actually caused the the little ice age is still debatable; the reading passages provide three reasons on the cause of the little ice age by giving three pieces of evidence. On the other hand, the professor contradicts the reading passage's argument by offering three compelling rebuttals.
To begin with, the lecturer contends that the effect of the disruption of ocean flows was not powerful enough to affect all over the world. So, the temperature of the northern hemisphere would had been only affected by the influence. However, the temperature of the southern hemisphere area, such as the South Africa, also decreased a lot. Since the changes on the ocean current, as discussed in the example of the gulf stream, cannot explain the cause of this phenomenon, the explanation seems illogical. This casts doubt on reading passage's contention that the temperature would have decreased due to the influx of a large amount of fresh water.
Next, the speaker argues that the effect of the eruption of volcanos were not likely to have an impact on the global temperature at all. The great eruption would have been noticed by people because it emitted the great amount of dusts and clouds. However, there was no record about such an event. It shows that the volcanic eruption would have been so weak, so there was only a little effect on the Earth. This refutes the reading passage's argument that the dusts and clouds emitted by the volcanic eruption would have blocked the solar radiation, so the average temperature of the Earth would have been decreased considerably.
Finally, the professor asserts that there was not enough time to affect the global temperature of the planet due to the decrease in the number of human population. The effects of the forest should have enough time to work, but the time span of the ice age was too short to have a great effect on the Earth. This challenges the reading passage's suggestion that decrease in human population would have made the Earth's temperature decrease because it would have caused the forests to grow well. This lead the amount of the carbon dioxide to decrease which is a main green house gas.
Writing 0–30 score scale: Limited (1-16) / Fair (17-23) / Good (24–30)
ADDRESSING TOPIC
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ORGANIZATION
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PROGRESSION AND COHERENCE
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LANGUAGE USE
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GRAMMAR
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GOOD
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GOOD
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GOOD | GOOD
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FAIR
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각 카테고리별 SCORE: LIMITED / FAIR / GOOD
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- 1st 대조점의 경우 gulf stream/ocean current가 왜 기후변화 원인을 설명할 수 없는지에 대해 조금 더 명확히 밝혀주세요. |