What three physiographic subregions make up the Intermontane West ...

[WhattoUnderstand]

What three physiographic subregions make up the Intermontane West in the United States and Canada?
 
  What will be an ideal response?

Question 2

What factors account for the expanded size of both the population and the economy in the Rocky Mountain region during the past two decades?
 
  What will be an ideal response?

[britb2u]

Answer to Question 1

Great Columbia Plain in eastern Washington scoured by outwash from the massive Missoula Floods in Pleistocene times.
The Colorado Plateau in the southeast where a series of step-like plateaus turn into high mountains.
The Great Basin

Answer to Question 2

The Rocky Mountain region, like many parts of the West, has experienced rapid growth of people attracted to the region because of tourism and recreation opportunities. This has even allowed some cities, sucha s Denver, to attract high-technology companies, building their quaternary sectors.

[WhattoUnderstand]

Thanks for the timely response, appreciate it

[ttt030911]

Excellent