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When we see that there are fossils found in a certain geological layer, which are evidence that a certain species existed at that time, and then in the next geological stratum we no longer find those fossils, and there is no evidence that the species which used to exist still exists, we infer that the species became extinct. If a whole lot of species become extinct at approximately the same time, we call that an extinction event, such as the KT extinction.
What else can I help you with?
What year did the book Number the Stars take place in?
it took place in the 1940s.that is when the holocaust took place. this book is all about the holocaust.
Who was the first spacewalk took place during which mission?
challenger
What year did Apollo 13 misson occur?
Apollo 13 took off in rthe year 1970.
What caused the movement called the scientific revolution?
Like all changes and new ideas, this involved many scientists who wanted to know more and why things were the way that they were. If you think about how the wheel was invented, it took many people thinking of ways to move large things over long distances. It didn't take a 'ah haw' moment, it took trial and error. The Scientific Revolution began when people began to use the scientific method to explain what they were seeing. It took a very long time and it is still going on today. For example: What is a worm hole?
On what date did the moon lunar landing take place?
The first manned landing was July 20, 1969.
When do scientists believe the big bang took place?
the scientists believe the big bang took place is northeast
When did the Permain extinction happen?
The Permian Extinction took place 250 million years ago, and 98% of life died out.
What event happened at the end of the Paleozoic era?
A large mass extinction took place at the end
Where and when does the the story take place?
I know it took place in Harlem, New York, but I was also wondering when it took place.
Where is America's strongman competition 2008?
As far as i know it took place in New York As far as i know it took place in New York
What advances in learning took place in al- andalus?
many advances took place. i just dont know what they are.
What advances learning took place in al-andalus?
many advances took place. i just dont know what they are.
Place where 1927 Indian national congress took place?
The 1927 Indian National Congress took place in Madras, which is now know as Chennai.
When did the battle of Montreal take place?
The battle of Montreal never took place, do you know why??
What year On The Town took place?
I don't know you tell me
What took place at a rendezvous?
hitler maybe I don't know
Where did the battle of marathons take place?
i need to know where it took place too so let me know when u find out....
