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Alamojay Alamojay
wrote...
Posts: 1898
9 years ago
Evidence from proxies indicate eight major oscillations in global temperatures over the past 800,000 years, most likely the result of
A) rising and falling sea levels that greatly impact photosynthetic activity.
B) variations in solar activity that produce different levels of radiation.
C) Milankovitch cycles of periodic variations in Earth's orbits around the sun.
D) lunar cycles in which the moon orbits at different distances from the Earth.
Textbook 
Environmental Science: Toward A Sustainable Future

Environmental Science: Toward A Sustainable Future


Edition: 12th
Authors:
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Super Cuban Dude
Smiling Face with Open Mouth
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JesuisMelJesuisMel
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Top Poster
Posts: 2453
9 years ago
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Alamojay Author
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9 years ago
Thanks
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Yesterday
Thanks for your help!!
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2 hours ago
Thank you, thank you, thank you!
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