What effect did the breakup of Pangaea have on the development of Washington? * 1 point When Pangaea ws initially formed, it created the shape of WA as we know it today. The breakup of Pangaea resulted in separate continents, one of which now holds WA. Pangaea created huge valleys in the landscape, which resulted in the formation of fjords like Puget Sound.

The breakup of Pangaea did not directly affect the development of Washington as it occurred millions of years before humans inhabited the region. The formation of Washington as we know it today, including its shape and its fjords like Puget Sound, was a result of various geological processes such as tectonic plate movements and glaciation that occurred long after the breakup of Pangaea.