TV Program: Earth Revealed: Introductory Geology: Volcanism

This episode focused on the causes and effects of volcanoes. Crucially important to the continuation of life on earth, they create landscape and add important elements to the atmosphere. It also examined the zones where volcanoes appear, called "hot spots," and included discussion on composite volcanoes and rift zones.

CC - Closed Caption
HD - High Definition
16:9 - Anamorphic Widescreen
LTR - Letterbox
DVI - Descriptive Video Information for the visually impaired

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