A Natural, Meandering, River Channel Is Modified into a More

question 15

Multiple Choice

A natural, meandering, river channel is modified into a more or less straight and smooth, canal- like channel. Which of the following statements is correct?

• A) The straight channel has a higher gradient and more friction than the natural channel.
• B) The natural channel had a lower gradient and less friction than the modified channel.
• C) The natural channel had a lower gradient and higher friction than the straight channel.
• D) There was no change in gradient or friction.

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Definitions:

Amygdala

A part of the limbic system that apparently facilitates stereotypical aggressive responses.

Aggressive Reactions

Responses characterized by anger or hostility, often as a result of provocation or frustration.

Commitment

A pledge or promise to do something, often involving dedication to a cause, project, relationship, or goal.