Where in the Universe Would You Look for a Rille

question 73

Multiple Choice

Where in the universe would you look for a rille?

• A) on Mars because rilles are the "canals" seen by Lowell to extend across the planet surface
• B) in the galactic plane because it is a dark dust band
• C) in Saturn's rings because rilles are the gaps in the rings
• D) on the Moon because it is the name given to a deep winding canyon there

---

Definitions:

Correct Verb

The verb in a sentence that accurately matches its subject in number and tense, effectively conveying the action or state of being.

Tsunamis

Large, powerful sea waves caused by underwater earthquakes, volcanic eruptions, or other disturbances, capable of causing widespread destruction.

Correct Verb

The usage of the appropriate verb form that agrees with the subject in number and person and fits the sentence meaning.

Tsunami

A sequence of massive sea waves usually triggered by subaquatic tremors, volcanic activities, or earth slips.