Which Statement About the Pacific Decadal Oscillation (PDO) Is False

question 63

Multiple Choice

Which statement about the Pacific Decadal Oscillation (PDO) is false?

• A) It is a major driver of salmon populations in the Pacific.
• B) It is an oscillation of sea surface temperature and atmospheric pressure.
• C) Its cycles typically do not last as long as those of ENSO and other similar oscillations.
• D) Evidence that it has occurred over many centuries has been gathered from tree ring data.

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