Actually, life has been around a while. The dinosaurs, for instance, lived 65 million years ago.
Simple life forms appeared around 3.85 billion years before present. By 3.5 billion years, cyanobacteria were forming stromatolites in the rock record. Late in the Precambrian, the Ediacara fauna appears around 580 million years before present.
* 3.5 billion years ago the first life arose: prokaryotic bacteria * 1.5 billion years ago eukaryotic cells arose Therefore, prokaryotes were present on earth for 2 billion years prior to the emergence of eukaryotic life.
* 3.5 billion years ago the first life arose: prokaryotic bacteria * 1.5 billion years ago eukaryotic cells arose Therefore, prokaryotes were present on earth for 2 billion years prior to the emergence of eukaryotic life.
2.3 billion years ago marks the Great Oxidation Event (before life is expected to have climbed onto land). At this time, there would have been an ozone layer. yes, the ozone is needed for life
The disorder typically presents as a large head circumference (distance around the head) either prenatally (before birth), at birth, or within the first few years of life
The average life expectancy for a woman in the United States is 69 years.
Term of copyright is for the life of the creator plus 70 years.
Earth is estimated to be around 4.6 billion years old, and evidence of the first life forms dates back to about 3.5 billion years ago, in the form of fossilized microorganisms. This means there were around 1.1 billion years of Earth's existence before evidence of life appeared.
Not enough research is present to guess. In zoos, they can live to be 21 years old.
63 years
In Georgia, a life sentence typically means a minimum of 30 years in prison before becoming eligible for parole.
The half-life of radioactive water depends on the specific isotope present in the water. Common radioactive isotopes found in water include tritium and carbon-14, which have half-lives of about 12.3 years and 5,730 years, respectively.