Lava comes from inside the Earth., A volcano can release lava and ash during an eruption., All volcanoes erupt every year., A volcano has parts that cannot be seen from the outside., The top opening of a volcano is called a crater., Volcanoes are found only in one country., Magma is the molten rock found inside a volcano., Every volcano is always active., Volcanoes can be dangerous to people living nearby., Volcanoes can help scientists understand what is inside the Earth..

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