What caused the United States to declare war on Spain in 1898? A. the destruction of the USS Maine
B. the brutality used by Spanish soldiers against the people of Cuba
C. the election of pro-Cuban president William McKinley

A.

Explanation:

" In 1898 the United States declared war on Spain following the sinking of the Battleship Maine in Havana harbor on February 15, 1898. "

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

raw information is your answer

~courtney