Abstract
At one time, Earth's atmosphere had a far smaller percentage of oxygen than it does today. Only when that percentage began to rise, thanks to the oxygen production of photosynthetic plants and organisms, was it possible for animals to come into being.
Collection
Subject
Series
Introduction to Oceanography, The Endless Voyage
Duration
00:01:32 (HH:MM:SS)
Language:
English
Copyright Holder
Name | INTELECOM Intelligent Telecommunications |
Role | Distributor |
Telephone | 800-576-2988 x122 |
Address | 150 E. Colorado Blvd. Ste. 300, Pasadena, CA 91105 |
[email protected] |
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