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The earth began to be formed over 4.5 billion years ago,but for millions of years nothing could live here.Gradually,the earth's crust and the atmosphere formed.The simplest form of life, bacteria and algae,probably began to grow less than four billion years ago.Human beings did not appear until about two million years ago.
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What is the definition of scientific question?
The definition of a scientific question is a question that can be answered using experimentation and factual reasoning. Some examples are:What is the universe made of?How did life on earth begin?What is consciousness?What is at the bottom of the ocean?
Which aspects of life on earth are accounted by evolution?
All life is the result of evolution.
What is the cycle called that involves ALL life on earth?
Life?.. you know, birth to death etc..
What are the three different areas of science?
physical life earth
What is the 3 branches of science?
The 3 branches of science are Physical, Earth and Life Science. Physical Science is about the study of non-living systems, Earth Science is about scientific terms related to planet Earth and Life science is about the study of living things.
How did plant life begin on earth?
you did
Where did homosexuality begin?
Homosexuality began wherever life on Earth began.Homosexuality began with the dawn of animal life on Earth.
When did evolution begin for humans?
Evolution does not begin or stop. It has been acting since the dday life began on Earth.
When did life first begin?
There is evidence of life on Earth since around 3.7 billion years ago.
When did life begin to appear on earth?
Plants have been around on the Earth since the Cambrian part of the Palenzonic Era.
Why has life become possible only on the Earth?
Life formed on earth because the conditions were right for life to begin and evolve. While some think that life (as we know it) is only possible on our earth, others think that somewhere, in the vastness of the Universe, life on a similar planet to earth must exist.
When did plant life begin to appear on Earth?
Plants have been around on the Earth since the Cambrian part of the Palenzonic Era.
How long ago did human life begin?
On the day god finished creatong the Earth.
How many years ago did life on earth begin?
4.567 million years ago
How many years ago did life first begin on earth?
4.567 million years ago
Where did life begin?
Life first began in the Earth's oceans, a few billion years ago. and cave men came from monkeys.
Once the world comes to an end will life have to start the process all over again or will roaches and other lower life forms become the only life in earth?
I believe life will begin on mars. And earth will turn into a planet like mars. as earth is moving closer to the sun. No, read a bible dude!
