[語文] gwd-12-22的CR
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?
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.
可以請問一下這題嗎?
我知道A無關 D有點支持的味道
那請問B跟E呢?
這題答案是B
謝謝
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