Biodiversity Journal,

 The total quantity of connected deoxyribonucleic acid base pairs on Earth is calculable at five.0 x 1037 and weighs fifty billion tonnes. as compared, the whole mass of the part has been calculable to be the maximum amount as four TtC (trillion loads of carbon). In Gregorian calendar month 2016, scientists reported distinguishing a collection of 355 genes from the Last Universal Common relative (LUCA) of all organisms living on Earth. The age of the planet is regarding four.54 billion years. The earliest undisputed proof of life on Earth dates a minimum of from three.5 billion years agone, throughout the Eoarchean Era when a geologic crust began to solidify following the sooner liquid Hadean eon. There ar microbic mat fossils found in three.48 billion-year-old arenaceous rock discovered in Western Australia. different early physical proof of a biogenic substance is carbon in three.7 billion-year-old meta-sedimentary rocks discovered in Western Gronland. additional recently, in 2015, "remains of organic phenomenon life" were found in four.1 billion-year-old rocks in Western Australia. in line with one in every of the researchers, "If life arose comparatively quickly on Earth .. then it might be common within the universe  

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