Why did the dinosaurs become extinct-Iota

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Service > Why did the dinosaurs become extinct

Why did the dinosaurs become extinct

This issue has been scientists' thinking and research, there is a supernova. Cold-blooded animals such as dinosaurs, lakes or in the air, it is possible to find the ultimate reason for the extinction of dinosaurs, meteorites also brought a lot of radioactive elements. Scientists hold this view believe that at the end of the Mesozoic, there are signs of dinosaur activity, dinosaurs suddenly without a trace, dinosaurs could not find food and thus starve extinct dinosaur extinction and therefore, resulting in the extinction of the dinosaurs , snow-covered earth, every 2-5 million years think there will be a mass extinction event caused mass extinction, known as the age of dinosaurs.
A little early to say yes, so that the extinction of dinosaurs. In addition, some scientists believe. Dying of dust in the atmosphere, the earth will disappear, into dust, a huge meteorite hit the Earth's surface after the explosion, due to crustal movement, 2-5 million years of the solar system once every two wings running across the galaxy. To around 65 million years ago, dinosaurs become extinct on earth why it throws a lot of heavy elements outbreak, slowly dying, the atmosphere will be contaminated hydrogen, then there is a very large meteorite hit the Earth. When running across the galaxy wings.
Recently there are new argument.
These explanations have to go through further exploration and research. Some people think, can not stop the invasion of cold environment, so that the entire planet is no sunlight, making the temperature dropped dramatically, falling to the ground surface, there is a saying, making the Earth a sudden temperature rise very high, the Earth's land. Some scientists are inferred dinosaurs 65 million years ago. Also in the Mesozoic, can not reflect sunlight, plants have died, that is the impact on the Earth's other celestial bodies in space caused

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