Many Planets, One Earth
The early Earth was a much different planet than the one we know today. Ancient rocks provide evidence of the emergence of oxygen in the atmosphere and of a frozen Snowball Earth. Scientists Paul Hoffman and Andrew Knoll look at these clues to help explain the rise of complex animal life.
| Other Authors: | Annenberg Learner (Firm), Infobase, |
|---|---|
| Format: | Video |
| Language: | English |
| Published: |
[Place of publication not identified] :
Annenberg Learner (Firm),
[2007]
Distributed by Infobase, |
| Physical Description: |
1 online resource (1 video file (28 min., 3 sec.)) : sound, color. |
| Series: |
Habitable planet : a systems approach to environmental science.
|
| Subjects: |
CMU Electronic Access
Electronic Resource Click Here| Location | Call Number: | Status |
|---|---|---|
| CMU Electronic Access | Available |