Question

A.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. Select the grammatically correct and appropriate sentence(s):

• A. D
• B. B&D
• C. A&D
• D. A&C

Hint:

Look for subject-verb agreement and idiomatic errors when filtering correct sentences.

Answer 1

The Correct Option is C

Sentences A and D are correct. Sentence B has the awkward and incorrect phrase “making them to break apart” (should be “making them break apart”), and C is incorrect due to the ungrammatical “many an offending chemicals” (should be “many offending chemicals” or “many an offending chemical”).