Ohio Assessment for Educators (OAE) Integrated Science (024) Practice Exam

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Study for the Ohio Assessment for Educators (OAE) Integrated Science (024) Exam. Use flashcards and multiple-choice questions with hints and explanations to prep for your test. Ace your exam!

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Which type of volcano is characterized by gentle slopes and mainly basaltic lava?

Cinder cone volcano
Shield volcano
Composite volcano
Fissure volcano

The correct answer is: Shield volcano

The type of volcano characterized by gentle slopes and primarily basaltic lava is a shield volcano. These volcanoes are formed by the eruption of low-viscosity basaltic lava that can flow over great distances, resulting in broad and gentle slopes. This particular lava type allows for the gradual accumulation of layers, making shield volcanoes appear like a warrior's shield lying on the ground. Their eruptions are typically less explosive compared to other types, which is due to the fluid nature of basalt. The effusive eruptions contribute to the expansive, shield-like shape of the volcano. Famous examples of shield volcanoes include Mauna Loa and Kilauea in Hawaii, which demonstrate the qualities of gentle slopes and extensive basalt flows. This distinctiveness in physical structure and lava composition clearly identifies shield volcanoes as the correct answer.