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
I believe it is A) Input because input costs means the cost of direct material, direct labor, and other overhead items devoted to the production of a good or service.
Answer: the extensive Spanish colonies in North Central and South America which included half of it
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srry but other people reports ur ans we actually can not help it happens same with me lol and it was done for around a month with even if question is from textbook, assingement or any other source it gets deleted and not even single was spared my all questions were deleted in that 1 month that i asked