As city populations increased in the early 1900s, cities grew up and out.
The similarity between Mississippi River, Appalachian Mountains, and Rocky Mountains is that they all created a rigid borders that effect the culture and trade of the people on either side of them
<h3>What are the natural features?</h3>
These natural features such as river and mountains were large vast of nature that spread across the U.S. land.
The similarity between them is that they created a rigid borders that effect the culture and trade of the people on either side of them
Therefore, the Option B is correct.
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Answer:
Scarcity as an economic concept "... refers to the basic fact of life that there exists only a finite amount of human and nonhuman resources which the best technical knowledge is capable of using to produce only limited maximum amounts of each economic good ... ."[1] If the conditions of scarcity didn't exist and an "infinite amount of every good could be produced or human wants fully satisfied ... there would be no economic goods, i.e. goods that are relatively scarce...
The sum of 3 fifthteens and 17 fifthteens is 20 fifthteens and 20 fifthteens is expressed as (20 x 15)=300
