Q. The term “Southern Annular Mode” is often seen on news is associated with which of the following?

[A] Arctic Ocean

[B] Antarctic Oscillation

[C] Pacific Gyres

[D] Temperate cyclones

Answer: B
Notes:

The Southern Annular Mode (SAM), also known as the Antarctic Oscillation (AAO), refers to the (non-seasonal) north-south movement of the strong westerly winds that blow almost continuously in the mid- to high latitudes of the southern hemisphere.  

Source: NOAA 

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