The country's first gold rush occurred in 1829 in which mountain region? Appalachian Plateau
Coastal Plain
Ridge and Valley
Blue Ridge

Appalachian Plateau

Explanation:

Gold rush is a situation in which lands rich in gold were discovered and resulted to people moving in droves to the area to seize the opportunity to mine them and sell in order to become wealthy.

Although the first gold rush occurred in Cabarrus County, North Carolina around 1799.

The most significant gold rush occurred in the country in 1829 in the mountain region of Appalachian Plateau.

a. competition with other nations.

explanation:

japan participated in world war i from 1914 to 1918 in an alliance with entente powers and played an important role in securing the sea lanes in the west pacific and indian oceans against the imperial german navy as the member of the allies.