Scientists are discussing ways to remove excess carbon dioxide from the atmosphere by increasing the amount that is absorbed by plant life. One plan to accomplish this is to establish giant floating seaweed farms in the oceans. When the seaweed plants die, they will be disposed of by being burned for fuel.
Which of the following, if true, would indicate the most serious weakness in the plan above?
下面放狗:
作文:“The country of Sacchar can best solve its current trade deficit problem by lowering the price of sugar, its primary export. Such an action would make Sacchar better able to compete for markets with other sugar-exporting countries. The sale of Sacchar’s sugar abroad would increase, and this increase would substantially reduce Sacchar’s trade deficit.” Discuss how well reasoned . . . etc.
逻辑我遇到的寂静有:
bill 的黑体的那个;(我做到的是第一个黑体的划到了总结论的那句话)
小朋友安全带的那个 (评价)
学生花生过敏
补充一个题目:
是gwd里面的。讲的是为了吸收二氧化碳,有的专家推荐种一个什么植物。我把原题搜出来给你们。
Scientists are discussing ways to remove excess carbon dioxide from the atmosphere by increasing the amount that is absorbed by plant life. One plan to accomplish this is to establish giant floating seaweed farms in the oceans. When the seaweed plants die, they will be disposed of by being burned for fuel.
思路:seaweed farm不能减少二氧化碳(侧重在后面,burn的时候如果释放更多二氧化碳也可以削弱)
Which of the following, if true, would indicate the most serious weakness in the plan above?
A. Some areas of ocean in the Southern Hemisphere do not contain sufficient nutrients to support large seaweed farms.
B. When a seaweed plant is burned, it releases an amount of carbon dioxide comparable to the amount it has absorbed in its lifetime.
C. Even if seaweed farms prove effective, some people will be reluctant to switch to this new fuel.
D. Each year about seven billion tons of carbon dioxide are released into the atmosphere but only about five billion tons are absorbed by plant life.
E. Seaweed farms would make more money by farming seaweed to sell as nutritional supplements than by farming seaweed to sell as fuel.