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An asteroid from space, like the one that killed the dinosaurs, which was a mile in width.

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15y ago

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What is a synonym for mass extinction?

Catastrophic extinction event.


What is one type of catastrophic change that can cause a mass extinction?

One type of catastrophic change that can cause a mass extinction is an asteroid impact. When a large asteroid collides with the Earth, it can release massive amounts of energy, cause widespread destruction, trigger tsunamis and wildfires, and create a global "impact winter" due to the release of dust and debris into the atmosphere. Such an event is believed to have caused the extinction of the dinosaurs 65 million years ago.


What may have caused the first mass extinction 65 million years ago?

The leading theory for the first mass extinction 65 million years ago is a catastrophic event such as an asteroid impact. This event is believed to have led to environmental changes that caused the extinction of the dinosaurs and many other species.


What are the extinction of animals in the very distant past?

There were five major extinction events in the past. They are called the Cretaceous-Tertiary (or K-T) extinction event, the late Devonian mass extinction, the Permian mass extinction, the Ordovician-Silurian mass extinction and the Triassic-Jurassic mass extinction event.


Why did many planets die at the end of the mesozoic?

Scientists believe the Cretaceous-Paleogene extinction event, or the plants dying at the end of the Mesozoic Era, was caused by a massive asteroid/comet impact. The theory suggests that the impact had catastrophic effects on the environment, including an impact winter, which prevented the plants from carrying out photosynthesis.


What is some catastrophic events that caused periods to come to an end?

mass extinction


What often occurs after a catastrophic global event?

Mass extinction. A mass extinction typically occurs after a catastrophic global event. This event could be a bolide impact (such as the impact 65 million years ago that killed the dinosaurs, the most famous example of a mass extinction), increased volcanism, climate change, or something similar.


What is the primary way that volcano's can trigger a mass extinction?

Gasses released by a massive volcanic event can cause catastrophic climate changes. Carbon dioxide will raise global temperatures. while sulfur dioxide will lower temperatures.


What is the primary way that volcanoes and can trigger a mass extinction?

Gasses released by a massive volcanic event can cause catastrophic climate changes. Carbon dioxide will raise global temperatures. while sulfur dioxide will lower temperatures.


What is mass depletions?

Mass depletion is an event in which extinction rates are higher than normal but not high enough to be classified as a mass extinction.


How do I use Permian Extinction in a sentence?

No, child, I was not a witness to the Permian Extinction. The Permian extinction event is the only known mass extinction of insects. The Permian extinction event occurred about 252 million years ago.


What does KT mass extinction mean?

The mass extinction that is believed to have eliminated larger dinosaurs 65 million years ago. Smaller dinosours survived, their descendants are today's reptiles. The mass extinction is believed to have been caused by an asteroid that collided with Earth. For more information, read the Wikipedia article on "Cretaceous-Paleogene extinction event", or search for this term on your favorite search engine.