D. A. C. B. E. Pearson Educaton Inc Above is a diagram of the Earth\'s revolutio

Question

D. A. C. B. E. Pearson Educaton Inc Above is a diagram of the Earth's revolution around the sun over the course of a year. A similar diagram is also included in chapter 2 of the textbook. Use the diagram to answer the questions below 11) What date is it when the Earth is at position A? What date is it when the Earth is at position B? 12) How many hours of daylight does the Equator see at position D? 13) Areas above the Arctic Circle see how many hours of daylight at position E? 14) Does the southern or northerm hemisphere receive more hours of daylight at position F?

Explanation / Answer

Ans 11) Position A - December 21

Position B - March 20

Explanation - A shows the Winter Solstice when the Earth is farthest from the sun.

B shows the Vernal Equinox when it is closest to the sun.

Ans 12) Theoretically the length of day and night are the same on the equator during autumnal equinox ( 12 hours day and 12 hours night). But it is not the same. Due to optical phenomena like refractions, the daylight hours are a bit extended.

Ans 13) 24 hrs.

Explanation - Due to the tilting of the Earth along its axis, this takes place.

Ans 14) Southern hemisphere recieves more daylight hours.

Explanation- The Antarctic circle has 24 daylight hours. The Arctic circle on the other hand has no daylight hours.

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