According to the research, the valleys and mountain ranges form due to the impact of the light collision of the plates of the earth's crust which forms folds and elevations.
A valley is defined as a depression in the earth's surface between mountains or heights, and a mountain range is a natural elevation of the terrain, a product of orogenesis.
These can be formed for different reasons, such as the erosion generated by a water course or tectonic movements, the latter due to the convergent movements where two tectonic plates collide, exerting force against each other, causing a folding of the lithosphere.
Therefore, we can conclude that according to the research, the valleys and mountain ranges form due to the impact of the light collision of the plates of the earth's crust which forms folds and elevations.
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