The Very Thin but Measurable Atmosphere of Molecular Oxygen Around

question 68

Multiple Choice

The very thin but measurable atmosphere of molecular oxygen around Jupiter's moon Europa probably originates from

• A) dissociation of water vapor by solar UV radiation.
• B) the remnant gases from Jupiter that reside within its magnetosphere.
• C) primitive plant life living in the extensive oceans underneath the icy surface, which has transformed carbon dioxide into oxygen.
• D) volcanoes that have ejected this gas during recent eruptions.

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Definitions:

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