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Author Question: On average, about 30 of solar energy that reaches the surface of the Earth gets reflected back. ... (Read 133 times)

fahad

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on: Jul 15, 2018
On average, about 30 of solar energy that reaches the surface of the Earth gets reflected back. Indicate whether the statement is true or false.

Question 2

Phoenix, Arizona does not need to learn from the Hohokam because technology has improved greatly
  since the 16th century. Indicate whether the statement is true or false.



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frejo

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Reply #1 on: Jul 15, 2018
Answer to Question 1

T

Answer to Question 2

F


fahad

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Reply 2 on: Jul 15, 2018
Thanks for the timely response, appreciate it

Joy Chen

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Reply 3 on: Yesterday
Wow, this really help

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