With reference to Marine Heat Waves (MHWs), consider the following statements:1.They are caused by an increase in the heat content of oceans, especially in the upper layers.2.Over the years, the Bay of Bengal has witnessed more MHWs as compared to Western Indian Ocean. Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: A

Notes:

Statement 1 is correct: Marineheat waves are caused by an increase in the heat content of oceans, especially in the upper layers. Worldwide, they are one of the major results of human-induced global warming.
Statement 2 is incorrect:The number of MHWs in the west Indian ocean increased by around 1.5 events per decade between 1982 and 2018. The occurrences went up by around 0.5 events per decade in north Bay of Bengal in the same period.

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