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Mount Hood (is part of the Cascade Range. These active volcanoes are a chain that stretches along the west coast from northern California to southern British Columbia, Canada. The Cascades are ________.

A) evidence of subduction in the Pacific Northwest of the United States
B) evidence of rifting of the North American continent
C) a product of the San Andreas Fault
D) due to a hot spot beneath Seattle

Respuesta :

pablolis67

Answer:

the correct answers is A

Explanation:

This volcanic arc, still active, began its formation 36 million years ago as a result of the subduction of the Juan de Fuca plate below the North American plate. The risks related to volcanism remain significant. All known historical eruptions in the United States have been due to volcanoes in the Cascade Range.

azikennamdi

Answer:

The correct answer is A) evidence of subduction in the Pacific Northwest of the United States.

Explanation:

The geology of the Pacific Northwest comprises the composition (including rock, minerals, and soils), structure, physical properties and the processes that shape the Pacific Northwest region of North America.

The Cascade volcanoes shape the Pacific Northwest section of the Ring of Fire, an array of volcanoes that rim the Pacific Ocean. The Ring of Fire is also known for its regular earthquakes. The volcanoes and earthquakes all arise from subduction.

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