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Earth is the third planet in the solar system from the inside to the outside, and it is also the terrestrial planet with the highest diameter, mass, and density in the solar system. It is also often referred to as the world. The Earth is 4,446 billion years old, and a natural satellite, the Moon, orbits the Earth in a 30-day cycle, while the Earth rotates in a cycle of nearly 24 hours and orbits the Sun in a one-year cycle.
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I came quietly and went quietly, just for 2 points.
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The first floor is so verbose. Originally, I wanted to see it too.
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Since the birth of the earth, it has created and dominated the living beings on it with its own laws. At the same time, human beings on the earth have been constantly influencing and transforming the earth's environment for their own survival and development in the long historical years, and have gradually become an indispensable part of the earth's environment. Today, human impact on the planet's environment has moved from a local impact in the Roman era to an era of global impact.
Because of this, humanity is facing a series of unprecedented, major and urgent global environmental problems. Environmental pollution, greenhouse effect, abnormal climate, vegetation destruction, land desertification, etc. have become hot topics for people. From a scientific point of view, these pressing environmental issues involve the interaction of the various parts of the Earth and the habitability of the Earth as a planet.
Understanding and predicting changes in the Earth's environment is a serious challenge for scientists around the world.
The earth is the material source and environment on which human beings depend for survival and development, so human beings have always closely linked their destiny with the evolution of the earth and the impact of the sun on the earth's environment. It is believed that the main factors of the Earth's evolution are due to natural variability, such as changes in solar and inter-earth distances, atmospheric and oceanic turbulence, continental plate drift, orogeny, volcanic eruptions, glacier expansion and contraction, and river changes. However, over the course of several generations, the economic and technological activities of human society have had a clear impact on global change.
In any case, humanity itself becomes part of the Earth system and directly becomes an influence on global change. Human energy production, intensive agriculture and intensification technologies have altered the Earth's reflectivity, the composition of soils and water bodies, the chemical composition of the atmosphere, the area of forests, and even the balance of global ecosystems. In this way, mankind's survival and social development are now facing a series of serious problems.
As we all know, although the origin of human beings is only a matter of a million years, its emergence has had a profound impact on the earth's environment. In the natural competition of biological evolution, human beings have begun to affect the local environment. With the advent of the Industrial Revolution, human beings have learned more skills, and their activities have gradually affected the entire global environment and become another disturbance factor for global environmental change.
As a result, global problems such as land desertification, the "greenhouse effect" and global warming, the destruction of ozone shielding, the sharp decline of forests and the extinction of species, and the shortage of freshwater resources have seriously threatened the survival and reproduction of human beings.
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Shocking environmental pollution can be seen everywhere: dark skies, polluted air, cross-flowing sewage, and ...... garbage sieges, even in the ice and snow of the Antarctic penguins, DDT and other pesticide residues have been found, Mount Everest is everywhere? The blue sky and clear water have become a childhood memory and unattainable dream for many people.
The Antarctic ozone hole is caused by excessive use of freon in the past and its emission into the air, which will irradiate a large amount of ultraviolet rays on the earth, increase the incidence of cancer, and increase the temperature of the earth; Red tide occurs in many waters because domestic and industrial wastewater enters the waters, which are rich in nitrogen and phosphorus, which causes eutrophication, which will lead to the death of fish and shrimp, and will also damage people's health through bioaccumulation; The destruction of virgin forests in the United States is man-made, and many trees have been cut down. As a result, many animals have been displaced, and some species have even perished.
Lop Nur, the Disappearing Fairy Lake", that is, Lop Nur was originally a very beautiful lake, but now it has disappeared and become a desert. This is a tragedy of man-made destruction of the ecological environment. With a strong voice, this reportage warns the people of the world to establish the awareness of environmental protection among the whole people and do a good job in ecological protection.
Cutting down trees. Digging river sand.
The cause of animal killing and environmental pollution is mainly caused by human factors. A large number of "three wastes" discharged by people in production and life, as well as sudden accidents in some industrial and living facilities, as well as untreated wastes in hospitals, can cause environmental pollution, and can cause harm in serious cases. During the war, due to the massive use of various ** to kill and injure residents and destroy residential areas, it can cause environmental pollution and destruction.
For example, air pollution in cities causes air pollution, and people's morbidity increases. Water pollution deteriorates the quality of the water environment, and the quality of drinking water sources generally declines, threatening people's health, causing premature birth or malformation of the fetus. Serious pollution incidents not only cause health problems, but also social problems. With the intensification of pollution and the improvement of people's environmental awareness, the disputes and conflicts among people caused by pollution are increasing year by year.
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The State Forestry Administration recently released the results of the fifth national inventory of forest resources. The inventory lasted five years and included an inventory of 30 provinces, autonomous regions, and municipalities directly under the Central Government. At present, the current status of forest resources in the country is:
The area of forestry land is 10,000 hectares, the forest area is 10,000 hectares, and the national forest coverage rate is; The total volume of standing trees is 100 million cubic meters, and the volume of forests is 100 million cubic meters. Except for Taiwan Province, the area of planted forests in the country is 10,000 hectares, and the plantation forest has accumulated 100 million cubic meters.
China's coal reserves reach 600 billion tons, and China's coal reserves rank third in the world, but the per capita reserves are only 462 tons.
3. China's recoverable oil resources are 15 billion tons, and the proven 100 million tons are yet to be proven. Among the 103 oil-producing countries in the world, China's total recoverable oil resources and remaining recoverable reserves rank 11th and 10th respectively. China's per capita oil recoverable resources are 12 tons, which is equivalent to the world average.
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Aunts and uncles: Hello! In the last few days, I have learned from TV and newspapers:
They have been destroyed by your endless destruction of the environment in which we live. For example, you emit the exhaust gas of the factory into the body and face of Mother Earth, resulting in the world's atmospheric content, the content of lead, arsenic, mercury and cadmium has reached tens of thousands of tons, and the exhaust gas has even torn two big holes in our ozone layer, so that ultraviolet rays ruthlessly burn Mother Earth's **, seriously endangering our living environment.
In 15 European countries alone, 7 million hectares of forests have been destroyed by acid rain. Today, you are still cutting down the forest vegetation so uncontrollably that in China, even our beautiful capital Beijing, is in danger of being covered in sand and dust. Since Mother Earth's green clothes can no longer protect water and soil, natural disasters such as floods, hailstorms, and strong winds continue to appear, causing great direct economic losses to us human beings, and people's survival is facing a huge threat.
Mother Earth, who has raised more than 5 billion of our people, is so tired and weak, her ruddy face has turned sallow, her bright eyes are dull, her eyes are sunken, and her face is wrinkled. She was getting more and more tired and overwhelmed. However, her children are increasing, and the area of arable land is getting smaller and smaller.
Do we have something to eat and a place to live in the future?Therefore, I would like to tell all the people, save the earth, protect all the trees, don't over-exploit it, don't make too much garbage, and please maintain our common home!Here, I appeal to all people:
Please take the initiative to protect our environment and restore our Mother Earth to its former youthful beautySincerely!Salute!
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The reasons for the destruction of natural resources on the earth are: (1) the extent of human exploitation of resources is too large, exceeding the ability of resources to regenerate;(2) human activities destroy the environment in which resources are formed;
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A growing population requires a lot of natural resources;Overexploitation of natural resources.
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1 3 of the country's urban population breathes heavily polluted air, and 1 3 of the country's land is eroded by acid rain. In economically developed Zhejiang Province, the acid rain coverage rate has reached 100. The frequency of acid rain is 11 in Shanghai and 12 in Jiangsu.
In central China and some southern cities, such as Yibin, Huaihua, Shaoxing, Zunyi, Ningbo, Wenzhou, etc., the frequency of acid rain exceeds 90.
In China, the maximum allowable sulfur dioxide emissions for the basic elimination of acid rain pollution are 12 million 14 million tons. In 2003, the country's sulfur dioxide emissions reached 10,000 tons, an increase of 12 over 2002, of which industrial emissions increased. At the current rate of economic development.
By 2020, the country's thermal power plants alone will emit more than 21 million tons of sulfur dioxide, and all emissions will exceed the atmospheric environmental capacity by more than 1 times, which will be a serious disaster for the ecological environment and people's health.
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It's only 2018!How did it get to 2020?
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