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Life on Earth is believed to have originated around 3.5 billion years ago through a process called abiogenesis, where simple organic molecules combined to form more complex molecules that eventually led to the first living organisms. This process likely occurred in the Earth's early oceans, where conditions were suitable for the formation of life.

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When did life begin to appear on earth?

Plants have been around on the Earth since the Cambrian part of the Palenzonic Era.


Was oxygen on Earth before or after life on Earth?

Elemental oxygen did not appear on Earth until some time after life did. In fact, the oxygen was produced by life carrying out photosynthesis. The first organisms on Earth were anaerobic, meaning their life processes did not involve oxygen. To most organisms like this, oxygen was highly toxic.


What is the most primitive life on earth?

The most primitive life on Earth are single-celled organisms such as bacteria and archaea. These organisms have simple cell structures and are thought to have been some of the first life forms to appear on Earth billions of years ago.


When did life first appear in the Earth's ocean?

Life is believed to have first appeared in Earth's oceans around 3.5 billion years ago. This was in the form of single-celled organisms like bacteria and archaea. These early life forms were the foundation for all subsequent life on Earth.


When did the first life forms appear on Earth?

Scientists think that the first life forms appeared on Earth about 3.6 billion years ago. These were simple cells that eventually evolved into the abundance of life we see today.


What property of water is not important to life on earth?

The property of water that is not as important to life on Earth is its color. While water can appear blue due to the absorption and scattering of light, its color does not play a significant role in supporting life on our planet.


The constellations you see from earth appear to change as the?

Earth revolves around the sun. That is why the constellations we see from Earth appear to change.


What mammals appear on planet earth?

Many mammals appear on planet earth. Here are some of them:oxhumanpigmonkeycatdogfoxwolfantelopeelephantpolar bearhorse


When did the first life appear on earth?

The first life on Earth is estimated to have appeared around 3.5 to 4 billion years ago in the form of single-celled organisms. These early life forms evolved into more complex organisms over time.


When did air breathing life appear?

Air breathing life appeared on earth about 400 million years ago, a little bit after the first plants came. The first air to be breathed was by insects.


Why does venus appear to be very bright from earth?

Earth's nearest neightbor


How did life first appear on Earth?

Life first appeared on Earth around 3.5 billion years ago through a process called abiogenesis, where simple organic molecules combined to form more complex molecules that eventually led to the development of living organisms.