Large reductions in the
ozone layer, which sits about 15-30 km above the Earth, take place each winter
over the polar regions, especially the Antarctic, as low temperatures allow the
formation of stratospheric clouds that assist chemical reactions breaking down
ozone. (B) Industrial chemicals containing chlorine and bromine have been
blamed for thinning the layer because they attack the ozone molecules, making
them to break apart. (C) Many an offending chemicals have now been banned. (D)
It will still take several decades before these substances have disappeared
from the atmosphere
D
B and D
A and D
A and C
Solution
The correct option
is A and D
Solution: Correct Answer Option: (c)
Statement (A) is grammatically correct. Statement (D) does not have any mistake either. Statement (C) is incorrect because of the wrong usage of the adjective 'offending' with chemicals. Moreover, when "an" is used, "chemical" and not "chemicals" should be used.
In Statement (B) "making them to break apart" is wrong usage
Thus answer option (c) is the right answer choice.
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