Perhaps the MOST Convincing Piece of Evidence Suggesting That Europa

question 5

Multiple Choice

Perhaps the MOST convincing piece of evidence suggesting that Europa has a subsurface ocean is the

• A) fact that the magnetic field of Jupiter is able to induce a magnetic field in Europa consistent with a salty ocean beneath its crust
• B) fact that calculations suggest that there is enough internal heat to keep the ice melted beneath the crust
• C) lack of impact craters on its surface
• D) observation of iceberg-like features on its surface

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Definitions:

Condensed

A state of matter that is characterized by particles being in close proximity, typically referring to liquids and solids.

Lewis Structure

A graphical representation of the distribution of electrons in molecules, showing how the atoms are bonded together and the pairs of electrons not involved in bonding.

Boron Trifluoride

A pungent, toxic gas that forms white fumes in moist air and is used in various chemical reactions as a catalyst.

Octet

The state of an atom achieved when it has a full valence shell of eight electrons, making it stable and less reactive.