Brody compared the kinds of magma formed in the various types of volcanoes. He knew that the amount of silica that magma contains will affects its flow. He learned that a slow, steady flow of magma can form shield volcanoes in some places. What is one cause for the formation of a shield volcano?

A. earthquake
B. caldera
C. hotspot
D. lava plateau

D. lava plateau

Explanation:

Shield volcanoes form broad, milder shield-like slopes, formed by the deposition of liquid lava.

Shield volcanoes are most commonly found in the central parts of large plateaus (flattened parts of the Earth's crust), such as volcanoes in Hawaii.

They are formed when there is a crack in the Earth's surface from which magma flows and accumulates on the surface, taking the form of high mountains over time.

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