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Could humans survive on Earth over two-and-a-half billion years ago before the emergence of plants Why or why not?
No, humans could not have survived on Earth over two-and-a-half billion years ago as the atmosphere at that time was not conducive to supporting human life, lacking essential elements such as oxygen. Additionally, without the presence of plants to produce oxygen through photosynthesis, humans would not have had a sustainable source of breathable air.
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How long did earth exist before the first life forms?
The Earth formed about 4.6 billion years ago, and the first life forms are believed to have appeared around 3.5 to 4 billion years ago. This means there was a period of roughly 500 million to 1 billion years between the formation of Earth and the emergence of life.
When did Rodinia form?
Rodinia formed about 1.3 billion years ago.
What was the earth's atmosphere before like photosynthesis?
Before photosynthesis, the Earth's atmosphere was primarily composed of carbon dioxide and nitrogen, with very little oxygen. The emergence of photosynthetic organisms led to an increase in atmospheric oxygen levels over time.
E precambin What era did water appear?
Water first appeared on Earth during the Hadean Eon, which occurred around 4.6 to 4 billion years ago. This was before the Precambrian era, which began about 4 billion years ago.
Is the current oxygen content of the atmosphere lower or higher or about the same as is was millions of years ago?
About the same. About a half billion years ago it was significantly higher, and more than a billion years ago it was lower, much lower. Before 1.5 or 2 billion years ago there was no free oxygen in the atmosphere, before 3 billion years ago there wasn't any.
Could humans survive on earth over two and a half billion years ago before the emergence of plant?
No, because plants produce O2.
How many years were prokaryotes present on earth before the eukaryotes?
* 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.
Prokaryotes were presented on earth how many more year before eukaryotes?
* 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.
How long had earth existed before any life appeared?
Earth is estimated to be around 4.5 billion years old. The earliest signs of life on Earth date back to approximately 3.5 billion years ago, suggesting there was around 1 billion years between Earth's formation and the emergence of life.
How long did earth exist before the first life forms?
The Earth formed about 4.6 billion years ago, and the first life forms are believed to have appeared around 3.5 to 4 billion years ago. This means there was a period of roughly 500 million to 1 billion years between the formation of Earth and the emergence of life.
Can people survive when the sun dies out?
The Sun will get hotter before it ends (red giant phase) and engulf the Earth in about 5 billion years.
Are the people of Arabian Peninsula monotheist before the emergence of Islam?
People of Arabian Peninsula were not monotheist before the emergence of Islam. They were worshiping idols as partners to Allah (or God in English).
What is a characteristic of the people before the emergence of Islam?
They were either polytheists or hanotheists
How long the prokaryotes populated Earth before the evolution of eukaryotic cells which are more complex?
Prokaryotes populated Earth for about 1.5 billion years before the evolution of eukaryotic cells, which are more complex. Eukaryotic cells are believed to have evolved around 2 billion years ago through a process called endosymbiosis.
If the sun turns into the white dwarf will it be the end of the earth?
The end of the Earth will probably come way before that. The Sun will get hotter and hotter for a while, and in about half a billion, or perhaps a billion years, it will get so hot that no life will be able to survive on Earth.
What is billion in India?
billion is 9 zeros before 1
What is before trillion?
billion
