Marshall Plan
Korean War
Suez Canal Crisis
Bay of Pigs Invasion
Cuban Missile Crisis
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:
astrolabe, magnetic compass, caravel, sextant and Mercator's projection.
Explanation: