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Why do we have seasons?
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The Earth is tilted at an angle of 23.5 degrees from the vertical. During the Earth's yearly orbit of the Sun, for part of the time the North Pole is tilted toward the Sun, giving a northern summer. Six months later it is tilted away, giving a northern winter. Summer in the north coincides with winter in the south, and vice versa. | | The tilt of the Earth causes different amounts of sunlight to fall on different parts of the globe. |
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Previous:
Back
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Book:
1001
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Section:
Earth
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Chapter:
Weather and Climate
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