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542-488 mya the earth received water
I am a meteorite containing organic materials going to this weird planet.
I am a cyanobacteria that releases oxygen into the atmosphere due to photosynthesis.
542-488 mya cynobacteria was present in the atmosphere
Earth developed animal phyla and the Earth was mostly water
Cambrian Explosion 542-488 mya
416-359 mya Trees come and so do fish and sharks. The Earth was mostly water and hardly any land.
146-65 mya dinosaurs increase, but then they become extinct. Earth was very tropical.
1.8-Present day Everything up to now. Earth is now 71% water and 29% land. On the land is humans and animals.
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