Which of the following constructive forces was most powerful in the formation of the appalachian mountains? a. crustal deformation due to two tectonic plates moving apart b. crustal deformation due to two tectonic plates moving together c. crustal deformation of two tectonic plates sliding next to each other d. crustal deformation did not play a role in the building of the appalachian mountains

Option (B)

Explanation:

The Appalachian mountains are one of the oldest mountain belts that have formed during the time of Ordovician, which is about 460-480 million years back. During this time, the super continent Pangaea was present, within which the Appalachians mountains were formed due to the convergent of the North American plate and the North African plate. But in due course of time, the direction of plate motion has changed. As a result of which these two plates moved in the opposite direction creating the Atlantic ocean.

Thus, the Appalachian orogeny was formed due to the collision between two continental plates namely the North American plate and the North African plate.

Hence, the correct answer is option (B).

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.