1) What is a volcano a) A type of mountain b) A large hole in the ground that spews hot lava, ash, and gases c) A deep ocean trench d) A type of desert plant 2) What is the molten rock beneath the Earth's surface called? a) lava b) magma c) ash d) granite 3) What is the name of the substance that often comes out of volcanoes and hardens into rock? a) air b) water c) lava d) magma 4) What is lava? a) Hot, melted cheese b) Cold, solid rock c) Hot, melted rock that comes out of a volcano 5) What is the opening at the top of a volcano called? a) crater b) summit c) pit d) hole

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