protect environment
Protecting the environment, everyone is responsible
Looking at it, some are just bumpy grounds, and large swaths of woods have been cut down and become wood products in people's lives. People are only self-interested, allowing groups of animals to be displaced and heading for it. This is not a false fantasy, it is a bloody fact.
Once upon a time, a large number of animals and plants in the world were extinct, and many animals and plants were on the verge of extinction. Why? This is because humans are cutting trees and destroying the ecological environment. This is the root cause.
Land resources are one of the three major geological resources and the most basic resource and labor object of human production activities. The degree of human use of land reflects the development of human civilization, but it also causes direct destruction of land resources. This is mainly caused by soil erosion caused by unreasonable planting, desertification of land, secondary salinization of land and soil pollution. Among them, soil erosion is particularly serious, but it is another serious crisis facing the world today. It is estimated that the amount of topsoil lost to the world's cultivated land is about 23 billion tons per year.
Some people think that acid rain is a silent crisis, and it is the most serious environmental threat that has hit us in history. It is an invisible enemy. This is not an alarmist. As industrialization and energy consumption increase, so does the amount of acid emissions. They enter the air and form acid rain after a series of actions.
Although the red tide has existed since ancient times, with the rapid development of industrial and agricultural production, water pollution has become increasingly serious, and red tides have become increasingly serious. Since the first report in China in 1933, there were 194 large-scale red tides in 1994, of which only four were before the 1960s and 157 after 1990. Petroleum pollution poses considerable damage to water quality and aquatic life. The oil floating on the water can diffuse rapidly, forming an oil film, hindering the contact of the water surface with the air, and reducing the dissolved oxygen in the water. Oils contain polycyclic aromatic hydrocarbon carcinogens that can be used to endanger human health through enrichment by aquatic organisms. Sulfur dioxide is mainly produced by the combustion of sulfur-containing substances such as coal and fuel oil, followed by natural sources such as volcanic eruptions and forest fires. Sulfur dioxide is highly irritating to the human conjunctiva and upper respiratory tract mucosa, which can damage bronchial tubes, cause bronchitis, pneumonia, and even pulmonary edema. The mortality rate of elderly or chronic patients with short-term exposure to sulfur dioxide at a concentration of 0.5 mg/m3 is higher than 0.25 mg/m3, which may worsen the condition of patients with respiratory diseases. People with long-term exposure to air at a concentration of 0.1 mg/m3 have increased respiratory symptoms. In addition, sulfur dioxide is likely to cause corrosion, peeling, fading and damage to metal materials, house construction, cotton-spun chemical fiber fabrics, leather paper and other products. It can also make plant leaves yellow or even dead. Everyone is responsible for protecting the environment.recommended article
popular articles
- Praying the mother's famous words
- a good saying that loves labor
- Cherish the time of the famous sayings
- Lincoln's famous sayings
- protect environment
- Sentence of life
- Sentences describing mental activities
- English four-level composition omnipotent sentence
- Modest and famous sayings
- protect eyes
- green Life
- a famous saying in the face of difficulties
- Encouraging words 2019
- Grasp the opportunity
- Honesty and good words
- Participle phrase
- Environmental protection proposal
- Deng Xiaoping's famous sayings
- Color change
- Happy color
- English joint test composition omnipotent sentence
- Chinese New Year custom
- Give the teacher 2019
- The most sad sentence 2019
- Latest praise to the teacher
- My low carbon life
- a famous saying of adversity
- The most common words of Satay
- Good people around you
- Improve students' environmental awareness