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Author Question: The Younger Dryas refers to a(n) A) 400 year, from A.D. 800 to 1200, period characterized by ... (Read 89 times)

TVarnum

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on: Jul 14, 2018
The Younger Dryas refers to a(n)
 
  A) 400 year, from A.D. 800 to 1200, period characterized by warmer than normal conditions in the North Atlantic region (e.g., Greenland and Iceland).
  B) the current period of unprecedented warming that has occurred since 1980.
  C) global cooling episode, lasting from approximately A.D. 1250 to 1850.
  D) brief return to near-glacial conditions during the transition period from the last glacial period to the present interglacial period.
  E) interglacial period, characterized by a general warming trend, lasting since the last glacial maximum (LGM) to the present.

Question 2

List and briefly describe the four forces that shape the speed and direction of winds.
 
  What will be an ideal response?


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okolip

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Reply #1 on: Jul 14, 2018
Answer to Question 1

D

Answer to Question 2

Gravity: compresses the atmosphere; counteracts the outward centrifugal force acting on the Earth's spinning surface. Pressure gradient force: drives air from areas of higher pressure to areas of lower pressure. Coriolis force: deflects wind relative to the rotation of the Earth. Friction force: drags on the wind as it moves across the Earth's surface, extends to a height of 500 m.


TVarnum

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Reply 2 on: Jul 14, 2018
Gracias!

deja

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Reply 3 on: Yesterday
Wow, this really help

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