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The earth is the only home for humans and other living beings, and we should cherish it and love it.
Rationale: Can humans simulate an environment similar to the biosphere for human habitation? To prove this, in the 80s of the 20th century, the United States built an experimental base in the desert of Arizona.
To distinguish it from the Earth's biosphere, scientists named it"Biosphere 2"."Biosphere 2"It is almost completely sealed, covering an area of 12,000 square meters, with a volume of 141,600 cubic meters, consisting of 80,000 steel beams and 6,000 pieces of glass. There are miniature forests, deserts, farmland, oceans and streams, as well as poultry and livestock such as pigs, cows, sheep, chickens, ducks, etc., as well as houses for human habitation.
Scientists use computers to control the amount of sunlight that comes in and adjust the temperature needed in each region.
In January 1993, 8 scientists entered"Biosphere 2", they plan to stay in it for two years. While engaged in scientific research, raised pigs and ducks, cultivated and harvested, and lived a completely self-sufficient life Scientists are trying to maintain this ecosystem in a relatively stable state, conducive to the survival of humans and other animals. Sadly, more than a year later,"Biosphere 2"The oxygen content in the country has been drastically reduced, and the grain production has been severely reduced.
The scientists could no longer live and had to be withdrawn early.
Although this expedition did not complete the planned plan, it used an example to tell people a truth: until now, the earth is still the only home of humans and other living things, and we should cherish it and love it.
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In the vast desert of space, a blue spherical celestial body, the surface of the sea and land looming, the sky is covered with thick clouds, this is the home of human survival and development - the earth. The Earth is a unique member of the solar system family, the only planet in the solar system that has life development and human activities, and the only celestial body in the universe known today that has biological evolution and highly civilized development.
The planets of the solar system are different in size and density, and they are far from the sun. They both rotate and together orbit the Sun near the ecliptic plane; They all have the structure of a core-mantle crust on the inside, and an atmosphere of varying concentrations and compositions on the outside. The Earth is a nearly spherical ellipsoidal celestial body, with a slightly bulging equator and slightly flattened poles, with an average diameter of 6317km, a rotation period of 23 hours, and a rotation speed of 23 hours and a period of days. Earth is an ordinary member of the solar system and seems to be featureless compared to other planets.
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The Earth's area and space are limited, its resources are limited, and obviously its carrying capacity is also limited, so human activities must remain within the limits of the Earth's carrying capacity.
In 1972, Stockholm determined that oxygen is necessary for human survival, but no similar planet has been found in the Milky Way.
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The key to the problem is not whether it is the only one, but whether the second can be found!
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Because humans are too stupid to find a place to live other than Earth.
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Technology has developed and there may be other homes.
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Because your ancestors were on earth!
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Suddenly, the question is how do you know that the earth is the only home of human beings, and since you know what else to ask, I don't know how you can make this conclusion.
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There is no evidence that humans live on Earth.
April 22 is Earth Day. This is a festival dedicated to environmental protection, aiming to raise the public's awareness of environmental protection, participate more actively in environmental protection actions, and improve the overall environment of the earth through green and low-carbon living.
Earth Day was launched in 1970 by Gaylord Nelson and Dennis Hayes. Today, more than 1 billion people in 192 countries around the world celebrate it every year, and Earth Day has become the world's largest environmental holiday.
Since the 90s of the 20th century, China has held "World Earth Day" activities with different themes every year, and this year's theme is "saving and intensive use of resources, advocating green and simple life - telling our earth story".
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It is said that the earth is the only home for human beings to survive because when compared with other planets, it will be found that the living environment provided by the earth to human beings is unique. There is little change in heat and cold on the earth, there is water, there is oxygen, there are many kinds of animals and plants, there are mineral deposits, there are all the basic conditions suitable for human survival and natural resources available for human use.
It can be said that the earth is the cradle of mankind, the mother of mankind, the home of mankind, and the only living environment for mankind at present. However, the heavy price of agricultural civilization and industrial civilization of human society is the destruction of the earth's environment: the reduction of green plants, the extinction of rare animals, overpopulation, the sharp decline of resources, soil erosion, alternating droughts and floods, natural disasters, ecological imbalance, and so on.
In order to protect human beings and other living things on the earth from the catastrophe caused by the irrational activities of human beings, it is imperative to protect the earth's environment.
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In the solar system, the Earth is about 100 million kilometers away from the sun, not far away, not close, not hot. There is a thick atmosphere on Earth that protects the planet. There is also water on Earth that life is indispensed without. Therefore, the earth can become the only living planet in the solar system and the only home of mankind.
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The earth is said to be "lovely" because the earth selflessly nurtures human beings and nurtures all things. The word "broken" is often used to describe fragile items such as glass and porcelain, which can be understood here as damage to the earth caused by various reasons, such as the crisis of resource depletion mentioned in the article.
There is only one earth" The text of the fourth unit of the sixth grade Chinese volume of the People's Education Edition, this sentence quotes the exclamation of the astronauts, which corresponds to the previous text, concisely and vividly summarizes the characteristics of the earth, and highlights the importance of protecting the earth's ecological environment.
This not only makes the sentence vivid, but also arouses human alarm and highlights the urgency of protecting the planet.
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About our earth, this is our human home, these homes we human beings are very dependent on its existence, if the earth disappears, then for us, it is like losing our own home, so, the importance of the earth is self-evident. In short, humans and other creatures on Earth are very dependent on the Earth's environment. There is also Zuo Yuanming for us humans, apes are our ancestors, so as the ancestor monkey of apes, and humans also evolved from monkeys, so why didn't they evolve as modern monkeys?
There are several reasons for this. <>
1. It was also a coincidence that monkeys evolved into humans. First of all, the first point is that our human beings from the previous religious culture, we are made by God, but with the development of the new ideas of the Renaissance, many people have questioned or challenged the existence of God, and it is precisely the case that after the 18th century, human beings are also studying the origin of species, so Darwin, a biologist, his exploration, discovered that the origin of our human beings, the origin comes from apes, then it is recognized by our later people, Although the religious community has been criticizing these theories "Biological Evolution", however, the improvement and development of our science and technology have also made it possible for us humans and apes to achieve 90% similarity in body structure, and the similarity of bone parts is so high, and archaeologists have also excavated bones again and again, such bones originated from prehistoric peoples. <>
2. The reason why it does not evolve now. There is also the reason why we don't evolve now is that the current environment and climate can no longer help our monkeys to adapt, the earth's environment is getting worse and worse, climate change is becoming more and more frequent, and geological disasters are causing great harm to monkeys, and every time there is a huge change, it will hurt monkeys. <>
3. Human existence. Finally, we human beings, our existence, will not allow any creatures to jeopardize our position, so in this case, we have monkeys in captivity.
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Earth is the home of life.
What is Earth?
The earth is the home of mankind;
is the nanny of humanity;
It is the cradle of life;
It is also the abode of every life.
Mankind has become happier because of the closure of the earth;
Animals are lovelier because of the earth;
Plants become more alive because of the earth;
All living things in the world have become more vibrant because of the earth.
Earth, this lovely home;
Earth, this cute doll;
Earth, this beautiful and fragile life.
Earth, she brings the earth back to life;
Earth, she makes the world come alive;
Earth, she makes animals alive;
Earth, she allows plants to grow unyieldingly;
Earth, she makes humanity thrive.
The earth, human beings can't do without her, animals can't do without her, plants can't do without her, and life in the world can't do without her.
She's too vulnerable;
She's so cute;
She is too delicate;
She is so beautiful;
She's so pure.
We cannot let this beautiful and lovely earth disappear;
Because she is the happy dwelling place of our human beings and even all things in the world, what would the world be without her?
You won't give up this earth, will you?
It won't destroy the earth!
Then please cherish it!
Because it's my forever home!
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Question 1: The earth is our home for human beings, what does this home look like You live on the earth every day, and the home of the earth is what you usually see.
Question 2: 9The earth is the home of mankind, and we should protect it, and the following statement about the earth is correct
aFalse: It consists of six major plates, namely the Eurasian Plate, the American Plate, the African Plate, the Pacific Plate, the Indian Ocean Plate, and the Antarctic Plate.
b. False: Internal forces play a leading role in the development and change of the earth's crust. The movement of the earth's crust is mainly horizontal motion, supplemented by vertical motion.
dError From the center of the earth to the surface of the earth, it is divided into the core, mantle, and crust.
Question 3: The earth is the home of human beings, and protecting the environment in which we live has become a global issue, what is your inspiration? 50 points Answer:
To destroy the earth is to kill yourself, and it is urgent to protect the earth, and everyone should contribute to the protection of the earth. (If you don't think it's good, you can add some of your own language).
Question 4: The earth is the home of human beings, please protect it. English: The earth is the home of human beings
please protect her.The earth is the home of mankind, please protect her.
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The earth provides us humans with a lot, briefly to mention a few: 1. The temperature is moderate, that is, the distance from the sun is suitable for group rent, neither cold nor hot. 2. There is an atmosphere that can protect life, especially the ozone layer that blocks ultraviolet rays.
3. There is a stable magnetic field that can resist the "solar wind" and other beams or carry deadly high-energy cosmic rays. 4. Atmosphere.
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Earth is the home of life.
What is Earth?
The earth is the home of mankind; Uproar.
is the nanny of humanity;
It's life. Cradle;
It is also the abode of every life.
Humanity has become happier because of the earth;
Animals are lovelier because of the earth;
Plants become more alive because of the earth;
All living things in the world have become more vibrant because of the earth.
Earth, this lovely home;
Earth, this cute doll;
Earth, this beautiful and fragile life.
Earth, she brings the earth back to life;
Earth, she makes the world of Shihong Lu Yuan vibrant;
Earth, she makes animals alive;
Earth, she allows plants to grow unyieldingly;
Earth, she makes humanity thrive.
The earth, human beings cannot do without her, animals cannot do without her, plants cannot do without her, and all life in the world cannot do without her.
She's too vulnerable;
She's so cute;
She is too delicate;
She is so beautiful;
She's so pure.
We cannot let this beautiful and lovely earth disappear;
Because she is the happy dwelling place of us human beings and even all things in the world, what would the world be without her?
You won't give up this earth, will you?
It won't destroy the earth!
Then please cherish it!
Because it's our forever home!
Exploring the universe can reveal many planets, and if the earth is really destroyed one day, humans can go to other planets to live.
Among the nine planets in the solar system, the light blue earth is the only planet full of life, and nearly two million species of life are active in its mountains, oceans, forests, blue skies, and poles, and it is a well-deserved paradise of life. But why does life love the earth so much? >>>More
The Earth is not supposed to be the only planet where life exists, and as for the other planets of life, they have not yet been discovered.
That's right, you need to learn everything you do, and you have to learn if you want to be ahead of the curve no matter what line you take.
About 3 million to 3.5 million years ago, humans appeared on Earth. The prehistoric period of human history is the first stage of the development of human society, that is, the stage of primitive society. The vast majority of primitive society belongs to the Paleolithic Age, in which human beings went through the stages of Homo sapiens, Homo erectus, early Homo sapiens and late Homo sapiens, and finally completed the transformation from primitive man to modern man. >>>More