Answer:
Movement in the mantle caused by variations in heat from the core, cause the plates to shift, which can cause earthquakes and volcanic eruptions.
A narrow eastern coastal plain traversed by many river valleys and gently sloping to the ridges of the ancient Appalachian Mountains. Route of America.
The Appalachian Mountains are a range of mountains that run along the eastern coast of North America, from Newfoundland and Labrador in Canada in the north to Alabama in the United States in the south.
The area is rich in natural resources, but the population is often poor. In addition, declining education levels and lack of public infrastructure (highways, developed cities, businesses, medical services, etc.) are deteriorating the economic situation in the region. especially in remote mountainous areas. They have pitted men against each other in sprawling clans for decades, often using murder and arson as weapons, along with ambushes, gunfights, and prearranged firefights.
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Answer:
Great Rift Valley
Explanation:
The Great Rift Valley is currently in the process of splitting the African plate into two different plates, and it's a divergent boundary, moving the Somalian, Arabian and Nubian plate away.
Hope this helped!
They are formed by subduction