Earth millions of years ago, long before humans #shorts #earth #ai #human #space
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Earth millions of years ago was very different from today. It was formed by collisions of particles in a large cloud of material about 4.6 billion years ago. It had no oxygen in its atmosphere and was constantly bombarded by asteroids and comets. It also had no life until about 3.5 billion years ago, when the first microbes appeared. Over time, Earth changed due to plate tectonics, volcanism, erosion, climate change and evolution. It went through several supercontinents, ice ages, mass extinctions and diversifications of life forms. Humans are a very recent addition to Earth's history, appearing only about 2 million years ago.
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