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By TED-Ed
Published in 2015
Our planet’s diverse, thriving ecosystems may seem like permanent fixtures, but they’re actually vulnerable to collapse. Jungles can become deserts, and reefs can become lifeless rocks. What makes one ecosystem strong and another weak in the face of change? Kim Preshoff details why the answer,...
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"Earth science resources. Each """"Chapter"""" includes animations and movies, question answers, learning objectives, quizzes, related readings, flash cards, a glossary, and internet resources. "
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Fun, interactive, research-based simulations of physical phenomena from the PhET project at the University of Colorado. Includes simulations in categories such as: physics, biology, chemistry, earth science, and math.
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