B Crossword
             
             
             
             
             
             
             
             
             
             
             
 
 
Down: 1) steep-walled depression around volcano vent2) volcano type with steep sides3) opening in earths crust through which magma flows4) opening in earths surface that often forms a mountain when lava, ash, and rock erupt7) large opening formed by collapsed volcano Across: 5) hardened magma squeezed into vertical spaces between rocks6) a broad volcano with gently sloping sides8) hardened magma squeezed into horizontal spaces between rocks9) volcano type with layers of tephra10) bits of rock or solidified lava dropped from the air
 

 

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