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Ozone reaches high concentrations twelve miles above Earth,

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Ozone reaches high concentrations twelve miles above Earth, where it **has long appeared that it was immune from** human influence; we have now realized, though, that emissions of industrial chlorofluorocarbons deplete the ozone layer.
A) has long appeared that it was immune from
B) has long appeared to have been immune from
C) has long appeared as being immune to
D) had long appeared immune to
E) had long appeared that it was immune to

2 Answers

Rakesh Dhyani Have a look at the original sentence again. There are a couple of nuances that you are still missing in your intended meaning. Figure that out!
answered Jul 8, 2016 by (-1 points)
0
Ozone earth se 12 miles ooper high concentration mein hota hai, jaha pe samjha jaa hai ki ozone human influence se immune hai.
Ab humein pata chal hai ki carbons isko deplete ker sekte hain.
answered Jul 8, 2016 by Beginner (21 points)
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