Earthquakes, volcanic activity, and mudslides most commonly affect which region in the united states? a. the northeastb. the interiorc. the southd. the west

The correct answer is - D. the West.

The western part of the United States is the one that commonly is affected by earthquakes, volcanic activity, and mudslides. This is due to the fact that the borderline of the Pacific and North American tectonic plates are in this part. The collision between the two tectonic plates causes a lot of unrest into the ground so earthquakes are a very common occurrence. This part of the United States is part of the Ring of Fire, so the volcanic activities are a given. And because of the two already mentioned occurrences plus the big amount of rainfall, mudslides often occur.

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Explanation:

The western part of the US is the one that is affected by earthquakes, volcanic activity,. This is due to the fact that  tectonic plates are moving there The collision between the two tectonic plates causes a lot of unrest into the ground so earthquakes are a very common occurrence. This part of the United States is part of the Ring of Fire, so the volcanic activities are a given. And because of the two already mentioned occurrences plus the big amount of rainfall, mudslides often occur.

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