usually an asteroid decintigrates before it hits the earth.
If an asteroid hit the Earth depending on its size, the smoke and debris of the impact would block out all sunlight to Earth. It would become unbearably cold and most life would die out. This is a theory of how the dinosaurs went extinct.this is right
Chat with our AI personalities
After mass extinction events, there is a period of recovery and evolution where surviving species adapt to new environments and ecological niches. It can take millions of years for biodiversity to recover and for new species to evolve and fill in the vacant ecological roles left by extinct species. The surviving species may experience rapid diversification to exploit new opportunities in the changed environment.
An explosion of life, like the Cambrian explosion, as previously repressed species no longer have competition for resources.
540 million years ago was the first mass extinction
The most devastating mass extinction occurred in the Late Permian (~250 million years ago).
Extinction did.
It is the fate of most living things eventually to go extinct. standard commonplace rate of extinction not associated with a mass extinction.
Mass extinction isn't a natural role in any life-system. They happen as a consequence of some catatrosphic disaster or radical unbalance in the eco-system. As a result of mass extinctions other 'groups' evolve into species that take the place of those exterminated.