The Following Is a Picture of a Landform on Mars

question 18

Multiple Choice

The following is a picture of a landform on Mars.What feature in this picture indicates that Mars may have had running water sometime in the past?

• A)deeply cut channels formed by a flowing river
• B)large sandbars likely formed by a sediment-choked river
• C)depressions formed during collapse of sinkholes
• D)a large flat expanse of land,likely a desert

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Definitions:

Stimulus

Any event or situation that evokes a response from an organism.

Systematic Desensitization

A behavioral therapy technique used to reduce phobic responses or anxiety through gradual exposure to the feared object or situation coupled with relaxation exercises.

Counterconditioning

A behavioral therapy technique that involves teaching the patient to associate a positive response with a stimulus that previously elicited a negative response.

CS

Stands for "Conditioned Stimulus," which is a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.