Extraterrestrial Cause for the Cretaceous

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Extraterrestrial Cause for the CretaceousThe works of Alvarez et al. (1980), are experimental and theoretical since they state a hypothesis and test it through experiments. The primary message that is outlined in the article is the extension of species during the Cretaceous period were brought about by an asteroid. The authors are trying to solve a hypothesis that states that various plant and animal organisms of the Cretaceous period resulted in extinction due to an asteroid. Furthermore, the authors are addressing the issues of increased iridium levels, exposed sea limestone in New Zealand, Denmark and Italy while trying to understand the reasons behind the reduction in platinum levels in the crust of the earth.Luis Alvarez, a physicist, who is credited with developing a proton linear ac...

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