Earth : Resources And It's Crust, The

Format: 16mm

Sound: sound

Description: Describes earth's mineral resources: their formation, distribution, extraction, refining and uses. Divides earth's mineral resources into metallic minerals, non-metallic minerals and mineral fuels. Diagrams picture type of rock in which minerals are found and how each is extracted. Shows mineral fuel formation, along w/ varied uses of fuel by-products. Discusses search today for new sources of mineral fuels, radioactive elements and necessity for conservation of all mineral resources.

1 user has this film:
AV Geeks Archive

Related films:

Original permalink · Record added: 2023-02-27 16:54:25