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Discussion

The lithosphere participates in the climate system chiefly through

  • A.weathering and the carbon cycle
  • B.the surface albedo of it alone
  • C.its total heat capacity
  • D.the magnetic field it carries

Answer: A

Silicate weathering removes carbon dioxide over millions of years and volcanism returns it, which sets the very long term background. On human timescales its role is largely static. Volcanism returns what weathering removes.

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