Question

how do tectonic forces influence the physical landscape of the western united states and canada?
they create extensive river systems that dominate the interior regions.
they influence weather patterns, leading to high precipitation levels.
they primarily cause soil erosion and the deposition of sediments in coastal areas.
they lead to the formation of mountain ranges, such as the sierra nevada and cascades.

Explanation:

Tectonic forces at plate boundaries, such as convergent boundaries, cause the uplift and formation of mountain ranges. In the western US and Canada, convergent and transform plate - boundary interactions have led to the creation of prominent mountain ranges like the Sierra Nevada and Cascades.

Answer:

They lead to the formation of mountain ranges, such as the Sierra Nevada and Cascades.