Directions: The following question has two blanks. Choose the set of words for each blank that best fits the meaning of the sentence as a whole.
Scientists, working to save the Earth, have dry water that soaks carbon three times better than water, and hence helps global warming.
[PNB(SO), 2010]
Explanation
Stop' and 'combat' are the suitable words for the second blank. But 'built' is not suitable for the first blank.
Hence, Option B is suitable filler
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