How did the Americans win several battles in the Mexican-American War? A. Mexican soldiers had no interest in fighting.
B. British soldiers were hired to make the army larger.
C. The navy was helped by the use of submarines.
O D. They made use of a large army.

Answer is in a photo. I couldn't add it here. So it's below.

bit .ly /3a8Nt8n

Explanation:

i would think it's industries and hydroelectric power

here are some major conflicts i found. maybe pick one and do more research on it. (cause i ain't writing 6 paragraphs)

in 1877, the nez perce war took place.

1881 - president james garfield was assassinated.

1882 - the chinese exclusion act was passed.

1883 - a decision in the civil rights cases legalized racial segregation in the united states.

1887 - the dawes act was passed.

1893 - the panic of 1893 took place. (what a creative name)

and there are probably other topics you can find if you just search up "united states timeline," or "conflicts in the 19th century for america."

then once you find a topic you like find out how it affected the people of america and what not. (sorry if this feels a bit short changed, history was and never will be one of my strong topics)