The ionosphere resides principally within the thermosphere, and ...

[pepyto]

The ionosphere resides principally within the thermosphere, and the ozonosphere resides within the stratosphere.
 
  Indicate whether the statement is true or false

Question 2

Describe the typical air masses that affect North America. Give their source regions, physical characteristics and properties, and typical directions of motion.
 
  What will be an ideal response?

[yasmina]

Answer to Question 1

TRUE

Answer to Question 2

Continental polar: cP, cold dry and stable. Source regionhigh latitude North America over continents.
Maritime polar: mP, cool, moist, unstable conditions. form over norther oceans.
Maritime tropical: mT, form over tropical waters in the Gulf/Atlantic and the Pacific. Both warm and humid, but stability differs between source regionsmore unstable in Atlantic.
Continental tropical: cT, hot, low relative humidity, stable, occurs in summer over Central America and southern U.S.

[pepyto]

TYSM

[patma1981]

Excellent