The D-layer of the ionosphere: A) has most of its electrons ...

[Davideckstein7]

The D-layer of the ionosphere:
 
  A) has most of its electrons combined with positively charged ions at night.
  B) lies above the E-layer.
  C) is transparent to AM radio waves.
  D) has no significant effect on AM radio waves.

Question 2

The stratosphere:
 
  A) is part of the heterosphere.
  B) has a low moisture content compared to the troposphere.
  C) typically gets colder as elevation increases.
  D) is where much of Earth's weather occurs.

[31809pancho]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: B