Between heaven and earth, yin and yang sympathize, and all things transform into life. The main source of carbon oxides is related to the opportunity of creation, and it cannot be observed carelessly.

The main source of carbon oxides, one of which is in the burning of mountains and forests. The ancients cultivated slash and fire, and every year, the people burned forests to reclaim fields. The raging fire, the mountains and forests are ruins, during which the carbon-containing things of grass and trees burned in the fire, and then the carbon oxides were scattered in the world. At this time, the smoke covered the sun, and its gas rose, filling the four emptiness. This is one end of the main source of carbon oxides.

Furthermore, the matter of mining and metallurgy is also an important source. The genus of gold, iron, copper and tin is hidden in the mountains and rivers of ore veins. If you want to take it for use, you must add calcination. When smelting ore, firewood and charcoal are the salary, the blast helps the combustion, and the carbon fire is hot. After the ore is refined, impurities and carbonation are combined, and carbon oxides are produced in large quantities, which escape with the smoke of the furnace, diffuse in the air, gradually gather more and more, and cause great harm.

And in the streets and alleys of the market, boats and cars are also the main source of carbon oxides. Since the ingenuity of technology, cars and ships are powered by fuel oil. Fuel, the quality of carbon and hydrogen, is also used to generate heat to drive, but when it burns, carbon and oxygenation are turned into carbon oxides and spewed out. The streets and alleys, the traffic water Ma Long, the carbon oxides emitted every day are innumerable, and the accumulation of a small amount makes a lot of carbon oxides, which then causes confusion in the atmosphere, and the appearance of climate variation gradually appears.

And the palace is built, and the brick and stone are fired, which is also its source. The brick kiln and tile stove, day and night, uses coal as a fire to bake earth and stone. The carbon of coal, under high temperature, is combined with oxygen, and the carbon oxides go up to the sky with the fireworks, scattered in the four fields, and mixed in the atmosphere.

All these ends are the main source of carbon oxides. Its source is wide, and its harm is deep. It is necessary to think about good policies to control it, so that between heaven and earth, the clear air grows, and all things are safe.