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Unformatted text preview: These include: the shifting of continents, cosmic collisions and climate-driving forces such as greenhouse gases. Times greatest division is partitioned into eras, which accounts for almost 95% of species extinction. It also explains oceanic circulation: two isotopes if carbon were traced. The Ocean Drilling Program discovered three cores, one of which was the layer that sat atop a section of sea floor that had been eaten away by acid. These slow changes to extinction increased greenhouse gases. Chapter 6 introduces to the concept of deep-freeze while bringing up the word, Pleistocene which means the most recent times. The chapter says that the genetic inheritance laid down in this world of ice is still with us today. We can observe this by looking at a piece of timber. By doing this we can tell that the compressed rings tell of adversity when extreme weather conditions tested life to the limits....
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- Spring '08