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Author Question: ________ occur about 130 km above Earth's surface near the polar regions when energy in the solar ... (Read 127 times)

Zulu123

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on: Jul 27, 2018
________ occur about 130 km above Earth's surface near the polar regions when energy in the solar wind guided by Earth's magnetic field excites gases in the upper atmosphere.
 
  a. Coronas
  b. Flares
  c. Auroras
  d. Coronal holes
  e. Nuclear fission

Question 2

Saturn is on average 10 AU from the Sun. What is the approximate orbital period of Saturn?
 
  a. 10 years
  b. 32 years
  c. 100 years
  d. 1000 years
  e. 1,000,000 years


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beccamahon

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Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

b


Zulu123

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Reply 2 on: Jul 27, 2018
Excellent

tuate

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Reply 3 on: Yesterday
Wow, this really help

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