Why did the dinosaurs become extinct?
According to the most mainstream argument, the extinction of the dinosaurs 65 million years is the size of a large asteroid impact caused the impact caused by the massive dust clouds, causing global climate change, a large number of animals and plants death, dinosaurs were also not spared.
then hit Earth asteroid with a diameter of around 10 kilometers, the point of impact near the Yucatan Peninsula of Mexico 奇克苏鲁布 today, according to estimates scientists asteroid impact released energy equivalent to millions strongest pieces of the hydrogen bomb - "Tsar Bomba" together detonated (the Tsar bomb a power equivalent to 50 million tons of TNT equivalent).
However, simply using hydrogen bomb explosion point of view to consider the consequences of the asteroid Fengyun brought is incomplete, because the quality and size of the Earth far above the asteroid, also said that an asteroid impact brings its own destruction is limited, it will only result in the biological area near the point of impact of rapid death, but will not result in the distribution of species around the world died.
However, the fact that but it is an asteroid that caused the event was 75% of the global species extinction, which is why it?
The real reason is the asteroid impact brought about by the aftermath - "dust", a huge amount of dust thrown into the atmosphere, although these will not have any adverse effect of dust immediately at the time, but the problem is, these atmospheric dust with the flow, distribution to the world, and continued for several years, and in the past few years, due to the dust blocked the sunlight, resulting in the death of a large number of plants, and then in the top of the food chain by dinosaurs had a significant impact, and finally come to the fate of extinction.
Some people ask if this asteroid impact event occurred in modern society, will have a different outcome occur? I think the high probability there will not be any good results, if not exterminated, but not much better. Humanity is now looks like a very advanced technology, but in the face of nature, still can not escape the fate of being controlled.