World Of Phosphorus
Sign in to track this film in your collection or want list.
Shows that elemental phosphorus is indispensable to agriculture, and that it forms scores of chemical compounds used to produce many necessities of everyday life. Shows how land from which phosphate rock has been removed can be reclaimed for other uses.
Related films
Sources
- 16mm Filmography (legacy record) — title, year, creator, format, sound, description, catalog record
Original permalink · Record added 2023-02-27 07:12:32