Question 21 Which type(s) of eruptions were most common in creating the Cascade Range volcanoes of Oregon and Washington? Combination of Peléan-type and Plinian-type eruptions. Combination of Hawaiian-type and Strombolian-type eruptions O Combination of Hawaiian-type and Plinian-type eruptions O Mostly Hawaiian-type eruptions Mostly Strombolian-type eruptions

The Cascade Range volcanoes of Oregon and Washington are primarily a result of explosive stratovolcanoes, typically caused by a combination of Plinian-type and other intermediate explosive eruptions. These eruptions are characterized by their powerful explosive force, which sends ash and volcanic gases high into the atmosphere, forming the iconic cone shape of these volcanoes. In terms of real-world application, understanding the eruption types associated with the Cascade Range is crucial for volcanic hazard assessment. This knowledge helps in developing evacuation plans and predicting future eruptions, ensuring that nearby communities can prepare adequately for potential volcanic activity.