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A webpage reviewing the origin of the Earth. Learn what Earth was like during its first billion years with an atmosphere that contained no oxygen. Understand that oxygen levels built up once green plants became more abundant. At the end of the webpage there is a link for a short quiz.
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Classroom Considerations
- Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)
- This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information