Final answer:
Shield volcanoes typically have gentler slopes than composite or scoria cone volcanoes.
Step-by-step explanation:
Shield volcanoes typically have gentler slopes than composite or scoria cone volcanoes. This is because shield volcanoes are formed by the eruption of highly fluid lava that flows easily and spreads out evenly in all directions, resulting in a broad, gently sloping shape. In contrast, composite and scoria cone volcanoes are built from the accumulation of solidified lava and volcanic ash, which create steeper slopes.
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Final answer:
Shield volcanoes have gentler slopes than composite or scoria cone volcanoes due to the type of lava that forms them. These volcanoes are reminiscent of the pancake-shaped volcanoes seen on Venus, and much of the volcanism seen on Io.
Step-by-step explanation:
A shield volcano is characterized by having gentler slopes than composite or scoria cone volcanoes. This type of volcano is created by eruptions of highly viscous lava that spreads out evenly in all directions, resulting in a dome shape, much like the pancake-shaped volcanoes on Venus. For example, most of the volcanism on Io, a moon of Jupiter, consists of hot silicate lava, and they create large eruptive plumes
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