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# RAGCT 2015 Day 10: Glacier and ice patch archaeologists

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Intern
Status: Applying
Affiliations: test
Joined: 16 Apr 2012
Posts: 34
Location: India
Yawer: Yawer
Concentration: Marketing, Technology
GMAT 1: 200 Q33 V33
WE: Consulting (Internet and New Media)
Re: RAGCT 2015 Day 10: Glacier and ice patch archaeologists  [#permalink]

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19 Jul 2018, 00:38
Glacier and ice patch archaeologists face extreme challenges to find, document, and conserve artifacts when melting ice fails to keep them undetected, shielding them from decay due to changing climatic conditions, and safe from misappropriation.

A. shielding them from decay due to changing climatic conditions, and safe

B. shielding them from decay because of changing climatic conditions, and saving them

C. shielded from decay due to changing climatic conditions, and safe

D. shielded from decay due to changing climatic conditions, and saving them

E. shielded from decay because of changing climatic conditions, and safe

Hello,

So In this question, I went with this method of thought. Melting ice keeps the artifacts undetected, how does it do it? By shielding it. So it is describing (modifying) the process in "Glacier and ice patch archaeologists face extreme challenges to find, document, and conserve artifacts when melting ice fails to keep them undetected" . I got the safe usage correct. But I don't understand how shielded keeps parallelism. Hope any expert gives an explanation. Also, does comma have a bearing on parallel structure over the verb-ing form?
Re: RAGCT 2015 Day 10: Glacier and ice patch archaeologists &nbs [#permalink] 19 Jul 2018, 00:38

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