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If anyone can help me understand any of my questions I would be truly grateful, and...

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natalie25948421 | Student, Grade 9 | (Level 2) eNoter

Posted April 18, 2013 at 4:16 AM via web

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If anyone can help me understand any of my questions I would be truly grateful, and more prepared for my upcoming test. Thanks! 

One of my three questions: As climate cools, ice sheets grow larger and more ice reflects more solar radiation, so the earth has less heat, so the earth cools, some more ice then forms. What would this be an example of?

Second question: In what part of the Earths orbit around the sun does the Northern hemisphere have summer?

Last and not least: If Everett receives about 38 inches of rain per year. Spokane about 225 miles east of Everett receives about 17 inches per year. What would be the explanation for this that utilizes the terms windward and leeward?

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tjbrewer | Elementary School Teacher | (Level 2) Associate Educator

Posted April 18, 2013 at 10:01 PM (Answer #1)

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I can answer your last question. 

Everett Washington is on the windward side of the Cascade Mountains.  As moist air from the Pacific passes over the Cascade Mountains a large amount precipitates on Everett and other Windward communities. 

Spokane is on the Leeward side of the mountains, it only receives a portion of the moisture left after the air cleared the Cascades.  That's why it receives significantly less rain than Everett. 

I can also answer question 2

The Earth's orbit is an ellipse, with the Sun at one focus of the ellipse.  Earth is also tilted in its orbit so that at one end of the ellipse the Northern Hemisphere is tilted toward the sun, and at the other end the Northern Hemisphere is tilted away from the sun.  When the Earth is at its furthest from the sun, the Northern Hemisphere is tilted toward the sun, producing summer conditions (long days, hot temperatures, short nights). 

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