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No, because plants produce O2.

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Q: Could humans survive on earth over two and a half billion years ago before the emergence of plant?
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Related questions

How did the first humans survive before the farming?

They fished and hunted.


Did whales come before humans?

Answer 1Whales first evolved roughly 54 million years ago.Homo sapiens (modern humans) evolved roughly 4 million years ago.Answer 2Whales and humans share a common ancestry in the clade of Boreoeutheria, dating back some 65 million years. By my best estimate, that's when the lineages leading to modern humans and modern whales went their separate ways.Modern whales, like the blue whale, form a diverse group of species, just like modern apes, like the humans, form a diverse group of species. On a geological timescale, there may not be much difference between the emergence of the modern species of whale from their basal clades and the emergence of modern species of ape from their basal clades.Comparing the emergence of modern humans to the emergence of whales isn't really a useful comparison. It's like comparing the emergence of vehicles to the emergence of the Audi A3.


What did animals do to survive?

They basically do what humans do to survive. Like humans need to eat to survive and we also need to sleep to survive.


Do humans eat to survive?

no we drink to survive. from keyna


Who is more likely to survive amoeba or humans?

humans


Why can cows survive on gas but humans cant?

Cows can't survive on gas alone. Neither can humans. Both cows and humans need food and water to survive, not just oxygen (which is a gas we breathe).


What will humans look like in billion years?

It is impossible to tell what humans will look like in a billion years, if any humans are even alive then. We could change drastically, or not at all.


What human activities is most closely associated with the emergence of viruses not previously seen in humans?

Likely the human activity that is most closely associated with the emergence of viruses in humans is urbanization. The closeness caused the viruses to promulgate more efficiently than in communities where there not as many people.


Is population higher for animals or humans?

idk, maybe humans cause there is 7 billion in 2011 and soon 9 billion in a few years


Which planets can humans survive on?

Without the correct equipment Humans can't survive on any planet at the moment except Earth.


How many humans?

7 Billion as of 2012!!


How many neurons in humans?

100 billion