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History of Earth (Sun ignites approximate 5.2 billion years ago. image),…
History of Earth
Sun
ignites approximate 5.2 billion years ago.
Planet Earth
4.5 billion years ago, the Earth condenses into a solid sphere, with an inner core which is extremely dense and hot.
The
Moon
was formed 4.5 billion years ago.
The Earth’s surface settles into a heaving turmoil of rock and water 4.0 billion years ago.
First LIFE arises 3.8 billion years ago
Prokaryotes first appeared on Earth 3.5 billion years ago
Photosynthesis bacteria that absorbed which created oxygen on Earth 3.4 billion years ago
Single-celled creatures, such as algae, begin the process of evolving into more complex forms of life 3 billion years ago.
Atmospheric Oxygen was the first dramatic rise of oxygen 2.4 billion years ago
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ARCHEAN ERA
