How was the Olympic Peninsula formed? (1 point) Responses by subduction, which resulted in an excessive amount of volcanic activity by subduction, which resulted in an excessive amount of volcanic activity through volcanic activity off the coast of Washington that led to the buildup of Pacific plates through volcanic activity off the coast of Washington that led to the buildup of Pacific plates when a large chunk of the ocean floor was lifted up and attached to Washington’s coastline when a large chunk of the ocean floor was lifted up and attached to Washington’s coastline when shifting plates caused a large section of land to break away from Washington’s coast

The Olympic Peninsula was formed when a large chunk of the ocean floor was lifted up and attached to Washington's coastline. This occurred when shifting plates caused a large section of land to break away from Washington's coast.