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Author Question: Ions trapped in Earth's magnetic field give rise to a. photosynthesis. b. auroras. c. ultraviolet ... (Read 50 times)

karateprodigy

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Ions trapped in Earth's magnetic field give rise to
 a. photosynthesis.
  b. auroras.
  c. ultraviolet radiation.
  d. ozone.

Question 2

The diameter of an average atom is about
 a. 10-7 m.
  b. 10-10 m.
  c. 10-5 m.
  d. 10-14 m.



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JCABRERA33

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Answer to Question 1

b

Answer to Question 2

b





 

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