Explanation:

 1.  The Appalachians are old mountain range. A look at rocks exposed in today's Appalachian mountains reveals elongate belts of folded and thrust faulted marine sedimentary rocks, volcanic rocks and slivers of ancient ocean floor. Strong evidence that these rocks were deformed during plate collision.

2.  Colarado mountain range have plutonic type structure.

3.  The entire Sierra Nevada can be thought of as an enormous tilted fault block.  Less than five million years ago, the range that we now know as the Sierra Nevada began to rise along its eastern margin. Through a combination of uplift of the Sierran block and down-dropping of the area to the east, the Sierra rose upward. Rising far more steeply to the east than the west, the entire Sierra Nevada can be thought of as an enormous tilted fault block with a long, gentle slope westward to California's Central Valley and steep eastern slope.

4.  Mount Kea and Mount Loa have volcanic type structure.