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Author Question: Which of the following does NOT have major areas of desert climate? a. the Sahara b. Turkestan c. ... (Read 121 times)

cnetterville

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on: Aug 7, 2018
Which of the following does NOT have major areas of desert climate?
 a. the Sahara
  b. Turkestan
  c. Indonesia
  d. Australia

Question 2

Explain how Eratosthenes used the rays of the Sun to estimate the circumference of Earth and to demonstrate that the planet was spherical.


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tanna.moeller

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Reply #1 on: Aug 7, 2018
Answer to Question 1

C

Answer to Question 2

Eratosthenes read about a well in Syene where sunlight reached the bottom at noon on the summer solstice, meaning that the Sun's rays were perfectly vertical. He measured the angle of a shadow cast by a column in Alexandria on the summer solstice, and used this angle to calculate the distance between the two cities, as a fraction of Earth's circumference. As the distance was already known, he could solve for the total circumference of Earth.


cnetterville

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Reply 2 on: Aug 7, 2018
Gracias!

mammy1697

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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