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Is Earth's surface stable and stationary now? ... No the Earth's surface is not stable. I know this because in the video it said that each plate moves at least a centimeter every year. In the past the plates still were moving evidence of this is the formation of the Himalayan mountains
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Geological evidence indicates that dinosaurs became extinct at the boundary between the Cretaceous and Paleogene eras, about 66 million years ago, at a time when there was worldwide environmental change resulting from the impact of a large celestial object with the Earth and/or from vast volcanic eruptions.
A they remove it from the air