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Statement I: A warm layer is thicker than a cold one between the same pressure surfaces.

Statement II: A cold column has a lower geopotential height at any given pressure level.

In the light of the above statements, choose the correct answer.

  • A.Statement I is incorrect but Statement II is correct
  • B.Both Statement I and Statement II are correct
  • C.Both Statement I and Statement II are incorrect
  • D.Statement I is correct but Statement II is incorrect

Answer: B

Both statements follow directly from the hypsometric relation, since thickness is proportional to mean virtual temperature. They are the same result stated from two directions. Together they explain why upper level troughs correspond to cold air and why thickness charts and upper air charts show such similar patterns.

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