The great changes in the earth, how the earth has changed

In the end, the reason is that there are too many people, and human beings have no natural predators, and the earth cannot support such a large number of people.

After all, humans evolved from animals.

Therefore, human beings must also abide by the laws of biology, and it is impossible for the population to reproduce indefinitely.

As a result, there will always be something that will stop the frenzied reproduction of mankind.

Viruses, disasters, etc.

The earth cannot support such a large number of people, so there are always so many people who do not have the necessities to live, and the surplus people have to die. And any way of dying is a disaster, so human beings take themselves as the protagonists and say, what's wrong with the earth?

In fact, the earth is still the earth, and it is still the same earth as before. The same happens**, the same volcanic eruptions, the same constantly changing weather.

It's just that the people of this changing earth feel it, and hang it up with the death caused by overpopulation. As a result, the natural state of the earth has become a disaster under the human feeling. Disaster to human beings.

Human beings are nothing more than a creature on earth, nothing more. This is the truth revealed by Copernicus, Darwin. Everything does not revolve around the Earth, and human beings are not the Spirit of all things ...

Don't be afraid, your last sentence is already your problem, you don't have to think too much about doing what you say, and the earth's climate is also cyclical, **not only recently but frequently, in fact, a lot happens on the earth every day**, don't be impetuous, I hope good people have a safe life.

Do you think there are coincidences in nature? What is destined to happen, there is no coincidence, it is all destined by fate and fate, unless there is a time shuttle. But there are times when your mind goes back in time, so there are some things that you still do.

- It's a bit boring to talk about this. I think.

Would you spend all your savings on a trip because you believe 2012 is coming?..?Will you stop working because you believe in the prophecy of 2012, and enjoy the remaining 2 years of your life by eating, drinking, and enjoying every day?

.The answer is definitely no.

1. Now the scientific community generally believes that 5 billion years ago, the solar system was formed, the dust around the sun gathered to form the earth's core, heavy metals were deposited deep underground, and then slowly formed due to the high temperature and high pressure underground, the earth's magma was formed, and the surface magma solidified into the earth's crust.

2. Earth is one of the eight planets in the solar system, the third planet in order from near to far, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system, 100 million kilometers away from the sun. The Earth rotates from west to east while revolving around the Sun. It is 4,04.6 billion years old, and it has a natural satellite, the Moon, which forms a celestial system, the Earth-Moon System.

It originated from the primordial solar nebula 4.6 billion years ago.

4.6 billion years ago, the Earth originated from the primordial solar nebula. After these 4.6 billion years of continuous evolution, the Earth has gradually formed the blue planet it is today. It is one of the eight planets of the solar system, which not only rotates from west to east, but also orbits the sun.

According to scientific records, the evolution of the earth is divided into the following three stages.

1. Land trapping during the geosphere.

The first stage of the Earth's evolution was the formation of the Earth's sphere, which lasted about 4600-4200 mA (million years). According to scientists, the Earth is the primordial solar nebula, which was formed as a hot fireball composed of magma at the beginning of its formation. Over time, the temperature of the Earth's surface continues to decrease, and the core of the Earth gradually evolves.

The denser material gradually moved towards the center of the earth, and the less dense material gradually moved towards the surface, which formed a predominantly rocky earth.

2. Archean and Proterozoic periods.

The second evolutionary stage is the Archean and Proterozoic periods, which date from 4200 to 543 ma. The earth began to continuously release its own energy outward, constantly spewing out high-temperature magma, releasing water vapor, carbon dioxide and other gases, and then there was an early primitive atmosphere. As the water vapor in the primordial atmosphere increases, more and more water vapor accumulates together to form small raindrops, which in turn fall to the earth's surface, thus forming the primordial ocean.

3. Phanerozoic period.

The third evolutionary stage is the Phanerozoic period, which dates from 543 ma to the present. This period of time is relatively short, but during this time period, the development of life on the earth is very rapid, the geological evolution is very rapid, and the geological processes have become rich and colorful. More advanced organisms gradually evolved on Earth.

These creatures already have clear shells and clear bones, and the earth has added a new number of biological species, and primitive organisms have begun to mutate or evolve.

The Earth is made up of fragments produced by supergiant stars**. The Earth was originally a small star that grew in size due to the constant collision of other celestial bodies. As the earth grows, the internal pressure also increases, and the internal temperature continues to rise, producing lava, and the heavy elements in the lava fall into the center of the earth, forming the earth's core.

Celestial bodies of different materials hit the earth, forming the distribution of different mineral resources in the earth's crust.

After being captured by the Sun, the Earth became the outermost planet of the solar system. The planets in the inner solar system continue to fall into the sun, causing the Earth to gradually move closer to the sun and become the third planet. If the Sun's autobiographical speed slows down, Mercury falls first into the Sun, followed by Venus, and the Earth will eventually fall into the Sun as well.

In 200 million years, the average winter temperature on Earth will be about minus 4, and the temperature will rise in all seasons1.

After 300 million years, the hottest temperature on the earth's surface is now about 40, and the temperature in winter is no longer -5*

400 million years later: now the hottest temperature on the earth in summer is as high as 42 And spring, is no longer the most beautiful season to tease the mountains and suns, how can spring be like the current summer, maybe the current February is very cold, when the time comes now the cold February, for the earth after 400 million years there will be 20 high temperatures, 1 billion years later: the sun has reached middle age, now the highest temperature on the earth can reach 60, the ocean has gradually evaporated, the earth is no longer a paradise in the solar system, After 3.8 billion years:

The Andromeda Galaxy is hurtling the Milky Way at 400,000 kilometers per second, which is not far from each other in the 21st century. 2.5 million light-years away, 5 billion years later, the sun is now expanding. In less than 200 years, the Earth will be swallowed by the unprecedented red giant Sun, which will vaporize and turn the Sun into a white dwarf.