The Cosmic Perspective Fundamentals (2nd Edition)
The Cosmic Perspective Fundamentals (2nd Edition)
2nd Edition
ISBN: 9780133889567
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 15, Problem 2QQ

Choose the best answer to etch of the following . Explain your reasoning.

2.Careful study of of community among different organs suggest that all life on earth saves a common evolved at it when earth had plentiful oxygen in its atmosphere depend on sunlight for energy.

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i need step by step clear answers with the free body diagram clearly
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