Chapter 1370: How the earth is formed

The blue cat is not a human, so Huang Chao will not give up the sigh of "Is this still human?" Obviously, the cultivation of Chaowei Blue Cat started from a bit by bit in daily life. Auntie Chicken's so-called "tackling game" gave Huang Chao an intuitive understanding of the fighting power of this world.
Covered with fire, the blue cat yelled and escaped from the gate of the city: "I'm burnt to death!" His movements are still alive and well, when he saw Huang Chao and Feifei watching on the side, and said happily: "Brother Huangfei, Feifei, Come and help! "
Feifei saw his embarrassed look and shrugged: "It's really impossible to get you." He said Feifei bowed forward, his orange tail spinning at high speed, like a helicopter's propeller, and he actually lifted himself off the ground. Flying low below the city wall.
Huang Chao has seen it. Although the blue cat Feifei is pitted, they are actually superheroes. So Huang Chao also flew himself, shook his head, pointed ears, and jumped three feet high: "Brother Blue Cat, I will help you!"
Huang Chao's weight was so heavy that he hit the wall with a punch. The wall hit by his fist swelled up at the time, and a ripple spread from the position of Huang Chao's fist to the four sides. That's when he hit an effect similar to an earthquake wave ...
"My hand hurts a little." Huang Chao thought awkwardly.
The naughty, curry, and fat guys above were swept by the ripples, and the three mice turned upside down. Finally, a circle of dizzy birds appeared on their heads, and they could not help falling to the ground.
Blue Cat laughed akimbo below: "Hahaha, Brother Yellow Dog, good job!"
Huang Chao took a peek at the blue cat, just like taking a ray of leeks from the vegetable field: "Brother Blue Cat!"
In the horrified cry of the blue cat, he was thrown up by Huang Chao ten meters high from under the city wall and directly rushed to the three mice that he could not escape. When Blue Cat saw that he had caught the enemy, he immediately forgot that Huang Chao threw him directly without saying hello. He laughed: "You guys are just trying to catch the mouse. With me and the Yellow Dog brothers, you can't win."
Huang Chao rushed under the city wall, his feet slammed on the ground, pulled the onion in the dry land and flew two feet high, and then he folded a few heels in the air. Instead of landing, he got higher and higher, and fell all the way to the wall. The reason for being so fancy is to conform to the mainstream of this world.
Naughty whispered: "Isn't this a dog taking a mouse to do more business?" He said it makes sense, Huang Chao and Blue Cat couldn't even refute.
Feifei dug through the city wall, and then found that his two brothers in a group had already stood on the city head and controlled the three of the mouse group. You can only draw a gun from the back, aim at the three mice, and play your part: "Hand over the answer."
Yes, they played for half a day, and they were all finished in heaven. In fact, this is a fun teaching game. They succeeded in solving the problem and got the answer to "how is the earth formed".
Faced with the threat of Feifei, the naughty three showed a disdainful expression, and the Blue Cat had already responded to this. He grabbed the fat boy and carried him in two braces in his braces to the city wall in his exclamation Outside: "If you don't tell me, I'll throw you down." The blue cat's big strip definitely means it can be done.
Fatty immediately admitted: "Okay, okay, the answer is for you. You three robbers."
He walked towards a fortress on the city wall, knocked on the masonry wall, the brick outside was removed, revealing the computer display inside, and it immediately showed the teaching picture:
"How did the earth form?"
"Earth accompanied the birth of the solar system: at the beginning of the solar system, it existed in the form of a huge and constantly rotating cloud of dust and gas. It is composed of hydrogen and helium generated by the Big Bang, but also has a long time ago Other elements synthesized inside the planet. Because the cloud rotates, gravity and inertia press the cloud into a circular disc, perpendicular to its axis of rotation. Most of the mass is concentrated in the center and the earth begins to heat. At the same time, because of gravity It causes the material to shrink around the dust particles, so that the rest of the disc begins to decompose into rings. The small fragments collide with each other and form larger fragments. "
"The Earth ’s matter is composed and gathered in a zone about 150 million kilometers away from the center. When the sun shrinks and is heated, nuclear fusion begins, and the resulting solar wind clears most of the disc without shrinking and Only a small amount of elements are left in the material that makes up the larger individual. Later, the heavier elements gather near the sun, forming small and dense stars (terrestrial planets); the lighter elements gather closer to the sun Far away, large and low-density stars (Jupiter-like planets) are formed, and Earth is the third closest planet to the Sun. "
"Early Pluto Earth had no oceans and no oxygen in the atmosphere. The asteroids collided with the remaining material after the formation of the solar system. These impacts combined with the heat generated by the radioactive disintegration, the residual heat and the heat generated by the contraction pressure, made the earth At this stage, it is completely molten. The heavier elements sink to the center, and the lighter elements rise to the surface, creating different levels of the earth. Scientists believe that the interior of the earth can be roughly divided into three constituent substances and properties Different concentric layers, the outermost layer is called the crust, the most central part is called the core, and the middle layer is called the mantle. If we make a metaphor of the internal structure of the earth, it is like an egg, the core It ’s the egg yolk, the mantle is the egg white, and the crust is the egg shell. "
After listening to the explanation, Blue Cat asked, "So why is there only life on earth in the solar system?"
There is the next level. The naughty three men are downcast to go to the next level and find that they really can't do the blue cats. Speaking of the three mice, they are also effective in naughty price comparison, and Huang Chao has a group of them. Everyone has a good combat ability. The blue cat is called "super power". That is not to say that it is just for fun ~ EbookFREE.me ~ At the next level, Feifei was stimulated by his cat brother and dog brother, and he was no longer secret. He pulled out a single barrel from behind and directly aimed at the gun with his naked eye. His inclination was so perfect that the shell fell into the most suitable. The location, the castle was blown into ruins. Looking at his masterpiece, Feifei smiled with satisfaction.
"Go get the answer." Huang Chao said. He and Blue Cat quickly found a golden treasure chest, and after opening it was a computer that played teaching videos.
"Earth ranks third among the nine planets of the solar system. It is 150 million kilometers away from the sun. This distance allows the earth to obtain enough energy, especially to maintain a suitable temperature for life. Compared with other planets, the earth has Appropriate mass and volume have attracted the atmosphere that supports life. During the formation of the earth, its inner layer circle continued to move, causing crustal movements such as volcanic earthquakes ... "
"Earth's magnetic field also resists the solar wind and cosmic rays that can kill creatures. The formation time of the earth is also just right. After his surface cools, the active activities of the earth's core cause a large amount of carbon dioxide and water vapor to be discharged into the atmosphere. The formation of water is crucial. Volcanic activity also emits a large amount of methane. This is the basis for the formation of early organisms. Early lower organisms rely on materials emitted by geological activities to create oxygen for the survival of later organisms. The transformation has formed our home today. "
(End of this chapter)
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