Without it, everyone would have to provide their own food and shelter.
The cascade volcanoes were formed by the subduction of the Juan De Fuca, Explorer and the Gorda Plate (remnants of the much larger Farallon Plate) under the North American Plate alone the Cascadia subduction zone
Selling grain is the answer.
The Gambia is the smallest country in the region that is not an island or a series of islands.
~Happy Studying! ^^