Question : Fill in the blanks-
__________ is the observed and projected increase in the average temperature of earth atmosphere and oceans.
Option 1: Ozone layer
Option 2: Global warming
Option 3: Sustainable development
Option 4: None of the above
Correct Answer:
Global warming
Solution :
Global warming is the object and projected increase in the average temperature of earth atmosphere and oceans.
Hence Option B is correct.