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03 Apr 2020, 01:55
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
61% (01:32) correct
39%
(01:40)
wrong
based on 410
sessions
History
Date
Time
Result
Not Attempted Yet
Engineer: Some people argue that the world’s energy problems could be solved by mining the Moon for helium-3, which could be used for fuel in fusion reactors. But this is nonsense. Even if it were possible to mine the Moon for helium-3, the technology needed to build viable fusion reactors that could use such fuel is at least 50 years away. If the world’s energy problems are not solved before then, it will be too late to solve those problems.
The main point of the argument is that
(A) mining the Moon for helium-3 is currently not feasible
(B) fusion reactors that are now being planned are not designed to use helium-3 as fuel
(C) people who advocate mining the Moon for helium-3 do not realize that fusion reactors could be designed to use fuels other than helium-3
(D) mining the Moon for helium-3 is not a possible solution to the world’s energy problems
(E) if the world’s energy problems are not solved within the next 50 years, it will be too late to solve those problems
Krishh9119
Joined: 10 Mar 2017
Last visit: 25 Apr 2021
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Concentration: Finance, International Business
Schools: W.P. Carey '23
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WE:Information Technology (Consulting)
03 Apr 2020, 03:05
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Engineer: Some people argue that the world’s energy problems could be solved by mining the Moon for helium-3, which could be used for fuel in fusion reactors. But this is nonsense. Even if it were possible to mine the Moon for helium-3, the technology needed to build viable fusion reactors that could use such fuel is at least 50 years away. If the world’s energy problems are not solved before then, it will be too late to solve those problems.
The main point of the argument is that
Question Type : Main Point
Meaning: the technology needed to build viable fusion reactors that use helium-3 is not currently present and If the world’s energy problems are not solved before then, it will be too late to solve those problems.
(A) mining the Moon for helium-3 is currently not feasible. Its feasible
(B) fusion reactors that are now being planned are not designed to use helium-3 as fuel .True but this is just a part of the argument and not the main point( where is the concern for current energy problem)
(C) people who advocate mining the Moon for helium-3 do not realize that fusion reactors could be designed to use fuels other than helium-3. Irrelevant
(D) mining the Moon for helium-3 is not a possible solution to the world’s energy problems. Perfectly describes the whole content
(E) if the world’s energy problems are not solved within the next 50 years, it will be too late to solve those problems..True but this is just a part of the argument and not the main point( Where is discussion of helium-3 gone)
D is our answer.
The main point of the argument is that
Question Type : Main Point
Meaning: the technology needed to build viable fusion reactors that use helium-3 is not currently present and If the world’s energy problems are not solved before then, it will be too late to solve those problems.
(A) mining the Moon for helium-3 is currently not feasible. Its feasible
(B) fusion reactors that are now being planned are not designed to use helium-3 as fuel .True but this is just a part of the argument and not the main point( where is the concern for current energy problem)
(C) people who advocate mining the Moon for helium-3 do not realize that fusion reactors could be designed to use fuels other than helium-3. Irrelevant
(D) mining the Moon for helium-3 is not a possible solution to the world’s energy problems. Perfectly describes the whole content
(E) if the world’s energy problems are not solved within the next 50 years, it will be too late to solve those problems..True but this is just a part of the argument and not the main point( Where is discussion of helium-3 gone)
D is our answer.
03 Apr 2020, 05:31
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Quote:
ARGUMENT
= mining for h-3 to use for fusion could solve our probs
= but, fusion won't be ready for at least 50 yrs
= thus, mining for h-3 wont solve our probs
CONCLUSION
Ans (D) mining is not a solution
