Biologists suspect we’re living through the sixth major mass extinction. Earth has witnessed five, when more than 75% of species disappeared.
Use this article to investigate how the Earth has changed over time long before humans arrived. It is suited to students in years 4, 6, 8, 9, and 10 studying Earth and Space, Chemical and Biological sciences.
Word Count: 602
Years: 4, 6, 8, 9, 10
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