Where Has Water Ice Been Found on Mercury

question 26

Multiple Choice

Where has water ice been found on Mercury?

• A) nowhere
• B) suspended as microscopic crystals in the stratosphere
• C) in permanently shadowed crater floors at the north and south poles
• D) in deep fissures on the night side

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Definitions:

Anxiety

A feeling of worry, nervousness, or unease about something with an uncertain outcome.

Contiguous

Being in close proximity or contact with something else, often implying physical touching or adjacency.

Contingent

Dependent on or conditioned by something else; a situation or outcome that hinges on another.

Classical Conditioning

A learning process in which a biologically potent stimulus is paired with a previously neutral stimulus to elicit a response that was originally elicited by the potent stimulus alone.