Positive effect is the usage of more land whereas negative effects is the control problem of that land.
<h3>Effects of settling the west</h3>
The positive effect of settling the west is that it provides America more land to use and its resources for the betterment of the economy while on the other hand, the negative effect of setting the west is that it was more land to control for the United States as well as the United States had to fight 2 wars to gain the territory.
<h3>Effects of railroads on the physical environment</h3>
The main disturbances caused by railways are air, soil and water pollution and noise which adversely affect species and organisms present in that environment.
Learn more about railroads here: brainly.com/question/2724028
Answer:
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In the United States, there are examples of the concurrent power shared by both the federal and state governments incluide the power of Taxes.
Explanation:
Currents powers are powers of the federal system of government shared by both the Federal Government each constituent political unit. These power may be exercised simultaneously.
Answer:drive mexicans out of texas
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