In the age of the dinosaurs, what was the huge cosmic force that caused the mutation of the earth s

This power is very small for the universe.

It is generally believed that an asteroid hit the earth, of course, the impact will not completely destroy the dinosaurs, but the latter series of effects caused by dust, such as the destruction of biological chains, climate extremes, etc., eventually led to the extinction of the dinosaurs.

Children, don't just talk about the cosmic forces, those white eats in cartoons will not appear.

Or is ...

There are two main theories, celestial impacts and volcanic eruptions, with the former being more likely.

If it is really a celestial impact, it is because the energy of the impact is equivalent to detonating a large number of powerful nuclear **, resulting in a global **, and the dust and highly toxic gases produced by the impact drift into the stratosphere, once they drift into the stratosphere, it will be difficult for the dust and poisonous gases to fall back to the ground, resulting in global climate upheaval, 3 4 species are extinct, the biological chain collapses, and the surviving dinosaurs continue to live for 250,000 years and gradually become extinct. Mammals began to rule the earth. The evidence is the abundance of iridium in the extinction strata of the dinosaurs and the craters near Mexico, where iridium is not much on Earth but abundant on asteroids.

If it is a volcanic eruption, it is likely that the eruption of the plateau caused the climate upheaval, and it is said that there is a qualified volcano on the Deccan Plateau in India, which is also the result of toxic smoke drifting into the stratosphere.

Or is ...

The glaciers melted, causing the herbivores to have no food and gradually starved to death, and the herbivores died, and the carnivores had no food, so they also died, and the dinosaurs became extinct, and the earth changed, changing three parts of land and seven parts of water.

Or is ...

temperature. Now the temperature on the earth suitable for our life is minus 20 to minus 40, let's say, up and down each extends 10 degrees minus 30 to minus 50What will the average temperature in Beijing look like in July at 50 degrees?

It is conceivable that in an era when the geological structure is relatively fragile and the atmospheric system is relatively unstable. For an early imbecile animal, the change in temperature was a terrible thing. Moreover, I think the only factor that can cause the global extinction of an organism is temperature.

Or is ...

It is a great force for the earth, but only the ripples of the sea for the universe.

Originally, there were several theories, but recently there was evidence, and the result was settled - an asteroid hit the Earth.

The energy of the impact is equivalent to detonating a large number of powerful nuclear **, resulting in a global **, and the dust and highly toxic gases produced by the impact drift into the stratosphere, once drifting into the stratosphere, it will be difficult for the dust and poisonous gas to fall back to the ground, resulting in global climate upheaval, 3 4 species are extinct, the biological chain collapses, and the surviving dinosaurs continue to live for 250,000 years and gradually become extinct. Mammals began to rule the earth. The evidence is the abundance of iridium in the extinction strata of the dinosaurs and the craters near Mexico, where iridium is not much on Earth but abundant on asteroids.

Or is ...

。I don't know

It is not yet a huge cosmic force, but it is just an astronomical event, and the comet hits the Earth, causing a sudden change in the global climate ......

None of them have been fully proven, and it must be caused by a combination of factors. (Personal opinion.) ）

A 10 km asteroid or comet.

We now know that the dinosaurs went extinct 65 million years ago. And at that time, not only were all the dinosaurs that had ruled the earth for more than 100 million years extinct, but the same tragic fate befell many other creatures living on the earth's land, sea, and sky. Marine reptiles such as plesiosaurs, flying reptiles such as pterosaurs, terrestrial reptiles of dinosaurs such as painted lizards, and marine invertebrates such as ammonites and arrowstones were also extinct in this disaster As for the microplankton in the ocean, calcareous planktonic foraminifera and calcareous microphytoplankton have also been almost swept away.

As a result of this catastrophe, about 50 per cent of the genera and almost 75 per cent of all species on Earth disappeared from the earth forever.

This is truly a great annihilation, a great catastrophe. As a result of the Great Annihilation, the appearance of the living world on Earth changed radically around the time of 65 million years ago. This mass extinction marked the end of the Mesozoic Era, and the geological history of the Earth entered a new era called the Cenozoic.

Scientists have worked tirelessly to analyze and study all the clues that can be found so far, and come up with various theories to explain this mass extinction phenomenon. But to date, there is still no 100% correct answer to the cause of this extinction.

After the extinction of the dinosaurs, it took almost more than 50 million years for humans to appear, and the extinction of the dinosaurs was probably more than 65 million years ago when humans appeared, starting from the ancestors of humansProbablyMore than 10,000 years ago, there was a difference of nearly 6,000 in the middleTen thousand years, it is almost proven that there can only be one creature on the earth that is at the top of the pyramid. <>

According to our recent bright and boring is the age of dinosaurs, dinosaurs have lived on the earth for much longer than human sharp keys, about 30 times more than humans, because human beings have existed on the earth for only about 5 million years, dinosaurs have existed on the earth for 180 million years, and after the extinction of dinosaurs, human ancestors appeared after more than 50 million years, and then we continued to evolve, about 2 million years ago, and gradually had this model of modern manLet people's wisdom really develop, to develop production and life, and have their own civilization, then the days will be much longer. <>

The earth is such an environment, it can provide limited resources, it can only let a creature at the top of the pyramid, we observe the shape of the pyramid, in fact, it is similar to the biosphere, the lower the more types of organisms, the higher the species of organisms, we can also understand that a company in the company can only exist one director silver branch long, the rest of the people can only play an auxiliary role, because there must be a person to occupy the main resources, master the main decision-making power, This group can be developedThe Earth's control over living things is actually the same, and only one creature at the top of the pyramid can keep the environment in a more balanced and stable state. <>

Dinosaurs can exist on the earth for so long, because dinosaurs only need some resources on the surface of the earth, it will not feel that it is the resources inside the earth, although human civilization has not existed for a long time, but we have developed a variety of technologies, we are constantly hollowing out the earth,The development of our economy needs the support of traditional energy sources, such as coal, oil, and natural gas, which are grabbing the earth's resources, so it is unknown how long human beings can exist.

Because there is a lack of physical evidence (fossils) of that period, no one knows how the environment changed during that period, and it is all speculation.

Humans are the most intelligent species ever created on Earth. The farthest human evolution began 2 million years ago, and modern humans evolved from people who walked upright, but human civilization only took 10,000 years.

After the ancients mastered artificial fire, the development of human society accelerated, and after the industrial revolution, it accelerated again, and the information revolution was a rapid development. The productivity of human beings has increased dramatically in the past 200 years, and before that, they basically depended on the weather for food, and their ability to survive was relatively weak. However, in the fastest 100 years, especially the invention and application of electricity, the power of science and technology has made human society more and more calm and confident in the face of nature.

Dinosaurs, the most powerful species on earth, first appeared 220 million years ago, through the Triassic, Jurassic and Cretaceous periods, unfortunately in the late Cretaceous period, that is, 65 million years ago, I don't know what happened to the earth at that time, dinosaurs were all extinct. In this way, dinosaurs survived on the earth for about 160 million years, and despite this time, dinosaurs did not evolve into more advanced intelligent species, and they were very vulnerable when they survived drastic environmental changes.

Now it seems that the emergence of human beings, especially the beginning of human civilization, compared to dinosaurs, it is simply a matter of an instant, even in such a short time, but human beings have been able to fly away from the earth, and the powerful scientific and technological power makes human beings also capable of causing great damage to the earth.

Dinosaurs have been on the earth for more than 200 million years, and humans may not be able to live on the earth for more than 200 million years, because the earth's environment has been destroyed, the temperature has generally risen, tsunamis are frequent, the survival of animals and plants is becoming more and more difficult, the use of chemical fertilizers and prohibited pesticides is excessive, soil drug residues, pollution exceeds the standard, and food is scarce, etc., and the earth is becoming less and less suitable for human habitation. Therefore, there is only one earth, and it is urgent to protect the earth from now on, from me.

It is difficult to say whether human beings will be able to rule the earth longer than dinosaurs, but the scope of human domination will definitely miss dinosaurs, because dinosaurs only lived on earth at that time, and humans can soon start interstellar travel and even move to outer space.

No, because the history of human beings is only a few million years at most, which is not comparable to the history of dinosaurs.

Not really, but humans are advanced animals and have their own unique minds, so they will exist in the world for far longer than dinosaurs.

Humans did not survive as long as dinosaurs, and dinosaurs were relatively large in size and very domineering.

So far, humans have certainly not been around as long as dinosaurs, but it's pretty much the same.

Human beings have not existed for more time than dinosaurs, which is also found according to the investigation of scientists, it can be seen that the lifespan of dinosaurs is very tenacious.

It was because the dinosaurs lost their ability to reproduce that they became extinct.