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technically, a mass extinction has no time frame, the only requirements are that a large portion of species die off relatively quickly, how this happens or how long it takes depends entirely on the current circumstances. most mass extinctions probably happened anywhere from a few months to a couple of years.
What else can I help you with?
When did the dimetrodon went extinct?
the dimetrodon went extinct in the Permian Mass Extiction Event in 250 million years ago
What is extiction?
Extinction is where a species of a animal/plant totally dies out and there are none left, like Dinosaurs for example, or Dodos.
What event marks the beginning of earths's current era?
the mass extiction
What is happening to earth at its very beginnings?
the mass extiction
Could mass extiction have been caused by an asteroid?
It has been speculated that the mass extinction of dinosaurs was caused by an asteriod, however there is not enough evidence collected to support this. It is still argued possible though.
The elements in a are always combined in the same proportion by mass?
From many years this affirmation is not considered valid.
How long would you have to wait for the mass to decrease to 25 grams if a radioactive element has a half-life of 2000 years and the sample of the element begins with a mass of 100 grams?
You would have to wait for 2000 years for the mass to decrease to 50 grams (one half-life) and another 2000 years to decrease to 25 grams (two half-lives). So, in total, you would have to wait 4000 years for the mass to decrease to 25 grams.
How many years would it take for the mass of a 1.00 g sample of carbon12 to be reduce to 0.125g?
It will take practically forever. Carbon-12 is not radioactive.
What is the mass of a bottle of glue?
There are many sizes of bottles of glue.Each would have a different mass.
What is UK measure of mass equal to 112lbs?
50.8 kilograms (it would have been a hundredweight, cwt, many years ago).
A radioactive element has a half-life of 1000 years. If a sample of this element begins with a mass of 20 grams how long would you have to wait for the mass to decrease to 5 grams?
Since the element has a half-life of 1000 years, it will take two half-lives for the mass to decrease to 5 grams from 20 grams. Two half-lives equal 2000 years, so you would have to wait 2000 years for the mass to decrease to 5 grams.
Which large animals were wiped out by the Cretaceous extinction?
Non-Bird Dinosaurs, Flying Non-Bird Dinosaurs lke ptheridactlye, Sea-Reptiles like Mosasaur and Aminotes those are the Animals who went Extinct in the K/T Mass Extiction
