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Following the montreal protocol,by which year is it expected that ozone will be recovered

$\begin{array}{1 1}(a)\;2020\\(b)\;2025\\(c)\;2050\\(d)\;2040\end{array} $

1 Answer

2050
Scientists are positive that recovery would be by 2075
Hence (c) is the correct answer.
answered Mar 31, 2014 by sreemathi.v
edited Nov 6 by meena.p
 
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