IMPORTANCE OF RIVERS

Duration: 11 min

Year Published: 1959

Format: 16mm

Color: B&W

Sound: Sound

Description: Explains how rivers have helped to shape the surface of the earth, to drain the land of surplus water, to supply water for drinking and for industrial and municipal use, to serve as barriers to invasion, to transport people, to supply food and power, to modify the climate, to help clean the air, to build up the land, and to sustain wild life

Complete Record: Source: AV-ED Interest level: el-jh-sh-c Price: $50, rent $3; color $100, rent $6 Format: sd b&w Catalog numbers: LC card Fl A 59-874

Metadata Source:Educational film guide. Supplements (1959-62)