Lovelock, The Earth is a self-regulating system, once we have organic life on Earth, that life creates a habitat that maintains life on Earth.
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Formation of Earth
4.54 Ba- volcanic outgassing formed the early atmosphere and contributed to the oceans but only contained trace oxygen which inhibited emergence of life
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Formation of Moon
4.25 Ba- collision with Theia (planet-sized body)
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Earliest evidence for origins of life on Earth and evolution of early life
Archean and Proterozoic eon
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Evolution of multicellular organisms
Phanerozoic (Metazoan explosion)
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Abiogenesis
Natural process by which life arises from non-living matter
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Other cards in this set
Card 2
Front
4.54 Ba- volcanic outgassing formed the early atmosphere and contributed to the oceans but only contained trace oxygen which inhibited emergence of life
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