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cinder cone volcano
a steep,cone-shaped hill or small mountain made of volcanic ash and cinders piled up around a volcano`s opening
these tall volcanoes may erupt on and off for as long as a million years,a tall,cone-shaped mountain in which layers of lava alternate with layers of ash and other volcanic materials
a crack in the earth's crust where rocks on one side can move in relation to rock on the other side
a wide, gently sloping, dome-shaped mountain made of layers of lava and formed by quiet eruptions
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