Select the most appropriate option to fill in blank no.1.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. refers.
- The given blank needs the word that would imply what 'global warming' means.
- From the given option, it is clear that refers which means to mention or talk about someone or something is the best fit word for the given blank.
Hence, the correct answer is Option 4 i.e. refers.