Which of the following best describes air circulation at high latitudes? a. Cold

ID: 233538 • Letter: W

Question

Which of the following best describes air circulation at high latitudes?

a. Cold dense air rises at the poles, flows outward away from poles, and rises between 60 and 45 degrees latitude.

b. Cold dense air sinks at the poles, flows outward away from poles, and rises between 60 and 45 degrees latitude.

c. Cold dense air sinks at poles, flows outward away from poles, and sinks between 60 and 45 degrees latitude.

d. Cold dense air rises at the poles, flows outward away from the poles and sinks between 60 and 45 degrees latitude.

B. Cold dense air sinks at the poles, flows outward away from poles, and rises between 60 and 45 degrees latitude.

( Because the cold air is dense, it sinks at the poles and due to solar heat the air rises from 60 to 45 degrees. )

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