Answer:
The connection between steel and the railroad system is the railroad system couldn't exist without steel. That's why things like the Bessemer process where invented because steel needed to be produced fast.
Explanation:
When the United States annexed Texas, the Mexican government decided to cut off diplomatic relations, resulting in the Mexican-American war, in which the Americans defeated Mexico.
Answer:
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Explanation:
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They need the warrant so that the citizen is sure that they are police, and because without one, it would technically be trespassing.
US wanted to get involved because they were concerned about equal access to china via foreign countries
Solution: open door policy 1899