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Explorations An Introduction to Astronomy, 3/e
Thomas T. Arny
The Terrestrial Planets

Essay



1

Some scientists have proposed “terraforming” Venus and Mars. That is, they propose introducing organisms that would use carbon dioxide to photosynthesize oxygen and make both planets more suitable for humans. Do you think this is a good idea? Why or why not?
2

What evidence do we see from the terrestrial planets that sup-ports the theory for the origin of the Solar System discussed in chapter 7?
3

What are some examples of resonances in everyday life?








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