The main reason is that it stemmed from the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River (the Mexican claim) or the Rio Grande (the U.S. claim).
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Explanation:
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Answer:
Open Opportunity
Open opportunity is the principle that anyone can compete in the marketplace. Open opportunity allows people to participate in the market of their choice in the manner in which they choose. Legal equality ensures that people in each market has the same economic rights. What is the main benefit of the economy of the principle of open opportunity? That anyone can compete in the marketplace no matter who you are.
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Children Had to Work
many people lost their Jobs because of new machines
Therefore they Had to move to the big cities to find work in the new factories where they Had to do monotonous and Boring Work(e.g. Control the machines)
This Work was badly paid
The cities were dirty and the Apartments often very small
But
New machines that Made Life easier ( staem engines)
