Which president led the united states as it expanded to california ,new mexico arizona , texas and neveda

The Annexation of Texas, the Mexican-American War, and the Treaty of Guadalupe-Hidalgo, 1845–1848. During his tenure, U.S. President James K. Polk oversaw the greatest territorial expansion of the United States to date.

international economic development agencies harm poorer nations by encouraging them to serve as exporters to wealthier nations.

hello most volcanoes are located at either divergent or convergent plate

this is where the plate motions aswell form magma