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The best guess is somewhere between 3.5 and 4 billion years, with the earliest clear fossil evidence being about 3.4 billion years old.
What else can I help you with?
How long has wood been on earth?
forever it was on earth when the earth was made
How old was earth when life appeared on it?
The Earth is about 4.5 billion years old. Life appeared on Earth about 3.5 billion years ago. The Earth would have been about 1 billion years old at that time.
How long has the Earth been habitable for living organisms?
The Earth has been habitable for living organisms for about 3.5 billion years.
How long have you been on earth?
I am a digital assistant and do not physically exist on Earth.
How long has Earth been habitable for living organisms?
Oh, isn't that a wonderful question! Earth has been habitable for living organisms for billions of years. Our beautiful planet has provided a nurturing home for a wide variety of life forms to thrive and evolve over time. Just imagine all the incredible creatures and landscapes that have existed throughout Earth's long and colorful history.
For how long has been life on earth?
3.8 billion years
If earth is 24 hours a day How long has life been in place?
Life on Earth is estimated to have existed for around 3.5 billion years. This means that life has been present on Earth for a vast majority of its 24-hour "day."
How long has archaebacteria been on earth?
how long has archaebacteria been on earth? how long has archaebacteria been on earth?
How many years have food been on this earth?
W-O-W. Let's think here: If there was no food, there would be no life. Using that logic, I'm guess that there has been food on Earth as long there has been life on Earth. That answer should change depending on your religion.
Where has life been found on earth found?
Life it ubiquitous on and in the Earth. Earth has been terraformed by the biosphere.
For how long this planet can stand life?
Life has been on this planet for over three billion years. Life on Earth will continue after mankind's reign is over.
How long has wood been on earth?
forever it was on earth when the earth was made
How long have mice been on this earth?
they have been on the earth for along time
What are the odds of life occurring in the universe?
The probability is 1, since it has already happened. There has been life on earth for millions of years - long before humans.
How old was earth when life appeared on it?
The Earth is about 4.5 billion years old. Life appeared on Earth about 3.5 billion years ago. The Earth would have been about 1 billion years old at that time.
How long have earthworms been on earth?
earthworms were the third form of life. They have been around for over 2000 years.
Has any non carbon-based life been found on Earth?
As of now, no non carbon-based life forms have been found on Earth. All known life on Earth is carbon-based.
