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# Because the wind doesn‘t always blow and the sun doesn‘t alw

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Because the wind doesn‘t always blow and the sun doesn‘t alw [#permalink]  02 Dec 2019, 11:56
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Question Stats:

34% (00:56) correct 65% (00:40) wrong based on 29 sessions
Because the wind doesn‘t always blow and the sun doesn‘t always shine, the power to be derived from these can be (i)________ and unreliable. But the authors dismiss this and argue for developing new energy storage facilities as if this were as (ii)________ as building a huge storage tanker to hold electricity generated when the wind is blowing hardest and the sun shining brightest. This idea is akin to cold fusion or the perpetual-motion machine: (iii)________ ideas, but existing only in the imagination. Unlike coal or gas, electricity must be generated essentially at the time of use.

Blank (i) Blank (ii) Blank (iii)
intermittent easy wonderful
stationary prickly outlandish
unrelenting thorny extraterrestrial

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[Reveal] Spoiler: OA

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Joined: 02 May 2018
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Re: Because the wind doesn‘t always blow and the sun doesn‘t alw [#permalink]  08 Dec 2019, 18:40
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For (i), we are looking for something to complement the idea of "doesn't always blow" and "doesn't always shine". Looking at the words, we can cross out stationary. Unrelenting means unyielding, which is the opposite of the descriptions. Intermittent makes the most sense.

For (ii), prickly and thorny don't make sense in the context of the sentence. Easy is the only choice.

For (iii), We can cross out extraterrestrial as it doesn't make sense. Outlandish could fit, but with the rest of the sentence saying "existing only in the imagination, wonderful is a better fit.
Re: Because the wind doesn‘t always blow and the sun doesn‘t alw   [#permalink] 08 Dec 2019, 18:40
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