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General perspective - Coggle Diagram

- - - - The Precambrian and The Phanerozoic
        
        The first covers almost 4 billion years. The Phanerozoic, on the
        other hand, spans 560 million years, has three eras and reaches
        the present time, the Holocene.
      - The Paleozoic era ("ancient life")
        
        It spanned 312 million years and is when the Earth was divided
        into several continents.
      - The Mesozoic era
        
        Also known as the era of the dinosaurs, saw with its warm
        climate the diversification and multiplication of animal and plant
        life on earth.
      - The Cenozoic era
        
        Covers the last 65 million years, up to the present day. In this
        period, the collision of Asia with India and Arabia with Eurasia
        occurs, giving rise to the Alps and the Himalayas. More complex
        life forms appear: mammals, hominids, Homo sapiens and the
        modern human being.
- - - - Scientists say that billions of years ago, the entire universe was
        one huge, hot, dense mass, and about 13.8 billion years ago,
        that mass exploded. That great explosion produced a continuous
        expansion. The extraordinarily dense matter was transformed
        into a billion pieces that were thrown in all directions, at a speed
        close to light. Scientists say that billions of years ago, the entire universe
        was
        one huge, hot, dense mass, and about 13.8 billion years ago,
        that mass exploded. That great explosion produced a continuous
        expansion. The extraordinarily dense matter was transformed
        into a billion pieces that were thrown in all directions, at a speed
        close to light.