the appalachian mountains a. first formed during the continental collision that resulted in the formation of pangea. b. are an accreted terrain, formed during subduction that preceded modern tectonics. c. include remnants of structures and rocks that formed during three distinct collisional orogenesis. d. are the result of the extension that formed the mid-atlantic ridge.



Answer :

The correct answer is option A.

The Appalachian mountains were first formed during the continental collision that resulted in the formation of Pangaea.

What are Appalachian mountains ?

The Appalachian mountains is a series of million years old mountains present in East and Northeast America.

These are rocky mountains which are extended across North America and were formed as a result of collision between the continental plates leading to the formation of large piece of land fragment called Pangaea.

In general, these mountain upheavals are rich sources of natural carbohydrate deposits including coal i.e. bituminous coal & anthracite coal.

Apparently, these are mountains have old folded texture which allows the coal to undergo metamorphism and transforms it overtime.

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