Is it possible that there were civilizations before ours? 🌎

dim753(59)
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The sediments found on Earth can be the key to determine if there was a civilization prior to the existence of the human being. Even, it is the global warming known as the Paleocene-Eocene Thermal Maximum, which took place 56 million years ago.   

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Adam Frank, a professor at the University of Rochester, has explained to the search for evidence that "if the industrial activity of a previous species is of short duration" could not be easily observed. To graph it, has indicated that we will leave samples such as plastics in the oceans, fertilizers in the soil and remnants of the use of fossil fuels. 

Can ours be one of many civilizations that inhabited the Earth? 

Collapsing civilizations could unleash the conditions to create fossil fuels that future civilizations would employ, so theoretically there would be some possibility. 

Is it possible that there were civilizations before ours? 🌎 | Ecency