Io Has a Smooth, Nearly Crater-Free Surface Because

question 51

Multiple Choice

Io has a smooth, nearly crater-free surface because:

• A) it has not been bombarded by meteorites.
• B) the gravitational effects on Io are slight.
• C) it is not tectonically active.
• D) of frequent lava flows.

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Definitions:

Combining Vowel

A vowel, often 'o' or 'i', used in medical terminology to ease the pronunciation between the word root and the suffix or between two word roots.

Cutting Out

The act of removing or excising a piece of material or a part of a structure.

Excision

A surgical procedure involving the removal of tissue, an organ, or other body part.

Combining Form

A combining form is a form of a word that only appears as part of another word, usually used in the formation of medical and scientific terms.