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.
it took place in the 1940s.that is when the holocaust took place. this book is all about the holocaust.
challenger
space shuttle roundtrip
Moon Landing
Apollo 13 took place in 1970.
the scientists believe the big bang took place is northeast
The Permian Extinction took place 250 million years ago, and 98% of life died out.
A large mass extinction took place at the end
I know it took place in Harlem, New York, but I was also wondering when it took place.
As far as i know it took place in New York As far as i know it took place in New York
many advances took place. i just dont know what they are.
many advances took place. i just dont know what they are.
The 1927 Indian National Congress took place in Madras, which is now know as Chennai.
The battle of Montreal never took place, do you know why??
hitler maybe I don't know
I don't know you tell me
Scientists took DNA samples from the remains of the Romanov family and compared them to DNA samples from known living relatives to know they were authentic.