I need information about the destruction of natural resources in 2 minutes

Examples of people destroying natural resources at will:

1. Acid rain: Acid rain is acidic precipitation with a pH value less than that caused by acidic pollutants such as sulfur dioxide (SO2) and nitrogen oxides (NOx) in the air. In areas affected by acid rain, a series of serious environmental problems have occurred, such as acidification of soil and lakes, destruction of vegetation and ecosystems, and corrosion of building materials, metal structures and cultural relics.

2. Toxic chemical pollution: There are about 780,000 kinds of chemicals in the market that are polluted by toxic chemicals. There are about 10,000 kinds of hazards to human health and the ecological environment.

Among them, there are more than 500 kinds of carcinogenic, teratogenic and mutagenic effects. With the development of industrial and agricultural production, 1,000 2,000 new chemicals are now introduced to the market every year. Due to the widespread use of chemicals, the atmosphere, water, soil and even organisms around the world have been polluted and poisoned to varying degrees, even the penguins of Antarctica have not been spared;

3. Global warmingGlobal warming: Global warmingGlobal warming refers to the fact that the main reason for global warming caused by the increase in global temperature is that human beings have used a large number of fossil fuels (such as coal, oil, etc.) in the past century, emitting a large amount of CO2 and other greenhouse gases;

4. Sharp decline in forests

Forests are an important part of the ecosystems on which humans depend. Once 7.6 billion hectares of forests on Earth, it fell to 5.5 billion hectares this century and 2.8 billion hectares by 1976.

The dangers of the indiscriminate destruction of natural resources are:

1. Excessive groundwater pumping leads to ground subsidence;

2. Overgrazing leads to desertification;

3. Cutting down trees will also lead to desertification;

4. Overfishing will lead to a sharp decline in the number of fish;

5. Crazy hunting of wild animals will make animals extinct;

6. Emissions of harmful gases have warmed the global climate, melting icebergs at the poles, and rising sea levels, exposing coastal cities and countries to the danger of being submerged.

Overgrazing on the grasslands has caused serious desertification. Widespread deforestation has cut off rivers.

The environment of Jiuzhaigou was destroyed by the filmmakers.

1. Damage to the environment: Since the environment is one of the components of the ecosystem, its changes will affect the stability of the ecosystem. There are many examples of breaking the balance of the ecological environment due to the destruction of the environment, such as:

formation of lactomar eutrophication; mercury poisoning in Japan; Fluoride destroys the ozone layer; deterioration of the ecological environment of the Aswan Dam; the evil results of the application of "666" and "DDT"; the "wet-room effect" of the earth, etc. 2. Destruction of vegetation, vegetation with forests as the main body is the lever of terrestrial ecological balance, and the most ecological disasters caused by the destruction of vegetation on the earth, such as the black storm that occurred in the western United States in 1934, destroying more than 4,500 acres of cultivated land; In 1963, a major storm occurred in the agricultural reclamation area of the former Soviet Union, destroying more than 300 million acres of land; The destruction of forests also led to the extinction of the ancient Babylonian civilization; The Thar Plain, between India and Pakistan, has been reduced to a desert due to deforestation, covering an area of 650,000 square kilometers; The deterioration of the ecological conditions in the Yellow River Basin in China stems from the destruction of forest vegetation in the upper reaches of the Yellow River, and the Yangtze River will become the second Yellow River. The deterioration of ecological conditions in the northeast forest area is mainly due to the unreasonable logging and over-logging of forests in the southwest and northeast forest areas. 3. Disrupting the food chain

Examples of disruption of the food chain and disruption of the ecological balance include: forest pests and diseases caused by over-predation of insecticidal predators; In India, the killing of otters in large quantities has increased the number of diseased fish and reduced fish production; In Australia, where animal husbandry is developed, the rescue of dung beetles caused by cattle dung mulching grass is more new. Of course, in the biosphere, there are often several triggers coexisting.