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Which of these statements about air masses are correct or incorrect?

1. The polar ice caps are source regions of polar air.
2. Regarding stability, all air masses are stable at source.

  • A
    1 is not correct, 2 is correct
  • B
    Both 1 and 2 are not correct
  • C
    1 is correct, 2 is not correct
  • D
    Both 1 and 2 are correct

1. The polar ice caps are source regions of polar air. → INCORRECT

  • Arctic Maritime air originates from the Polar ice caps.

The Northwest area of North Atlantic is the source of Polar Maritime air.

Siberia is the source of Polar Continental air.

2. Regarding stability, all air masses are stable at source. → CORRECT
The source of any moving airmass is an area of high pressure => High pressure air is stable air.

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