BRAINLIEST IF CORRECT!!
What was one major effect of the war of 1812 on the United States?

B

Explanation:

they couldn't trade with England after the war and lost support because of this as they lived based on trade

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.