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.
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Lots of civil wars and the invasions of barbarians like the huns and other tribes brought down the empire since the senator could not get along and refused to fix the problem.
Answer:
The Industrial Revolution in Great Britain in the middle of the 18th century marked the beginning of a technological gap that would define the political landscape of the world in favor of the European nations. This period supposed the creation of many devices that improved not only these regions economical activities but also the military, as European navies were able to settle in many parts throughout the world with relative ease. Improvements in weaponry gave Europeans the edge when it came to conflicts with locals in different parts of the world.
Explanation: