Answer:
What was a major effect of the Russo-Japanese War? Japan added Manchuria to its territory. Japan gained influence in nations such as Manchuria and Korea. Russia defeated the Japanese fleet. Russia rose as a major competitor for power in east Asia.
Explanation:
Sir Henry Bessemer<span> invented the first process for mass-producing steel inexpensively in the 19th century.</span>
Agriculture , factories built to supply army. maybe money.
The positive impact would be if both the natives American and the European settlers managed to develop a good relationship, The native americans could obtain a more advanced technology and education for the society.
But as it turned out, the settlers come without any good intention and create many negative effects. Such as they started to steal the native's land.