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The earth has existed for more than 4 billion years, providing a suitable environment for our human survival and allowing us human beings to thrive. So how did the name Earth come about? Most of the earth is water, so why is it not called a water balloon but the earth?
Let's take a look. <>
As we now know, the earth has existed in human society for many years, and in ancient times people became interested in the environment in which we live, and the earth is the name they have taken. They believe that the earth is round, like a ball. At that time, people's cognitive level and scientific and technological level were conceivably backward, so people's exploration and cognition of the earth were also relatively lagging behind.
They only believed the words of the more prestigious people in the area, so over time the earth came from this. In addition, the range of activities of people at that time was very limited, so in their influence, they thought that they were surrounded by land. <>
When people get used to the name, few people come to study the space we live in. Moreover, in ancient times, people were more concerned about food and clothing than about the components of the earth. At that time, they basically relied on hunter-gatherers for their livelihood, and there was no concept of family planning at that time, so there were many people who needed to feed a large population, so everyone's interest in the earth was not very strong.
In modern times, with the improvement of people's cognitive level and the progress of science and technology, many scientists have developed a strong interest in the environment in which we live, and they have begun to explore the composition of the earth, only to understand that most of the original area of the earth was water rather than land. <>
So why not change the name to water polo now? I think it's probably because people have been used to the name Earth for so many years, and if you change the name suddenly, it will be difficult to adapt for a while. But as common sense, you just need to know that most of the earth's surface is actually water.
In our daily lives, we should also pay attention to protecting Mother Earth and loving nature.
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There is so much water on the earth, why not call it a water ball.
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Because before the naming of the earth, it was not known that there was so much water on the earth, so it was named after the earth at that time.
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Because human beings live on land, and the place where we live is called "earth", so human beings call this planet the earth.
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Because in the past, people didn't know that there was so much water on the earth, and people thought that there was more land, so it became the earth.
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This is because the ocean area on the earth's surface accounts for 71%, that is, most of the earth's surface, and there is a lot of water storage, and the thickness of the surface water can reach tens of meters when tiled on the ground.
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 4,046 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.
The Earth's equatorial radius is kilometers, the polar radius is kilometers, the average radius is about 6371 kilometers, and the equatorial circumference is about 40076 kilometers. The surface area of the earth is 100 million square kilometers, and 29% of the land area is land except for the ocean area.
The interior of the earth has a core, mantle, and crust structure, and the outside of the earth has a hydrosphere, atmosphere, and magnetic field. The Earth is the only celestial body in the universe where life is known to exist, and it is home to millions of living beings, including humans.
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Why is the earth not called water ball: Although the earth has a large ocean area, the earth cannot be called a water planet, although the ocean accounts for the vast majority of the area, but human beings live on land, and the land area is enough for people to complete basic life activities.
In space, on the space station, the earth is blue when viewed through the telescope, because the ocean on the earth is blue under the reflection of sunlight, so the earth is also called the blue earth, but the earth is not called a water ball, because the earth is still essentially composed of the ground of the front, it is still made of rocks, and the vast area of the ocean that we see is because there is enough seawater in the ocean to cover the land under the ocean, and when the sea level falls to a certain extent, The land area of the earth will continue to rise, and the opposite is true, if the sea level continues to rise, the land area will decrease.
What can be called a water balloon is based on water, that is, the entire planet is completely composed of water, and the ocean water on the earth's surface is only attached to the surface of the earth's land under the condition of the earth's gravity, forming this special earth's landscape.
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In ancient times, people lived on land, and the scope of activity and observation was small, so they could not recognize the whole picture of the earth, and the ancient navigation technology was backward, so they did not know the vast area of the ocean at all, so the name of the earth was not called water ball, but the earth.
Earth is the only name that is not derived from Greek or Roman mythology. The word earth comes from Old English and Germanic languages. In Roman mythology, the goddess of the earth was called Tellus the Fertile Land (Greek Petsia: gaia, Mother Earth).
The total area of the earth's surface is about 100 million square kilometers, the water area is about 100 million square kilometers, accounting for about 71% of the total surface area of the earth, and the land area is about 100 million square kilometers, accounting for 29% of the total surface area of the earth. When seen from space, the Earth looks like a water balloon, which is blue in color, and it should be called a water balloon.
But at that time, when the earth was named, the range of people's activities was small, the range of observation was small, and they saw that there was a vast land around them, so they called the earth where we lived. When the name was given, people not only thought that the land in the world was greater than the sea, but even that the land was always flat. Earth is the third planet in the solar system from the inside out, and it is also the terrestrial planet with the highest diameter, mass, and density in the system.
The human beings who live on the earth often refer to the earth as the world.
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Because in ancient times, people lived on land and could not recognize the whole picture of the earth, and the ancient navigation technology was backward, so they did not know how big the sea was, and most of the people lived inland, how could they know how wide the sea was! Therefore, the ancients named the earth, not called the water balloon, but the earth.
Because in ancient times, people lived on land and could not recognize the whole picture of the earth, coupled with the backward navigation technology in ancient times, they did not know how big the sea was, and most of the people lived inland, how could they know how wide the sea was! Therefore, the ancients named the earth, not called the water balloon, but the earth. Because when the earth was named, people didn't understand this truth.
Seventy-one percent of the earth is ocean, and only 29 percent is land, so it should be called water balloon. Due to the underdevelopment of means of transportation at that time. People have a small range of activities and a small range of observation, and they see that there is a vast land around them, so they call the land we live in.
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