The aurora borealis: A) is a different type of physical ...

[Themember4]

The aurora borealis:
 
  A) is a different type of physical phenomenon than the aurora australis.
  B) gains its energy from sunlight reflected from Earth.
  C) is typically strongest near the equator.
  D) emits light as electrons move from higher orbits around the nucleus to lower ones.

Question 2

The ionosphere is so designated because:
 
  A) satellites have a difficult time flying through it.
  B) visible sunlight is deflected by it.
  C) of the electrical charges of atoms associated with it.
  D) no radio waves can pass through it.

[Chou]

Answer to Question 1

Answer: D

Answer to Question 2

Answer: C

[Themember4]

Excellent

[Kedrick2014]

Gracias!