Combustion engines, such as in cars, trains, ships and planes, the automobile industry began in the 1890s, but in reality, Since 1950, we already feel that it has started to pollute with carbon monoxide, nitrous oxide and gaseous oxide. These three toxic gases could easily affect the ozone layer until today we can see the results, including the increase in the Earth's temperature, the melting of the North Pole and South Pole glaciers and a sea ​​level rise. Mining, this industry is really linked to improving our lives. because we can extract some necessary metals such as iron, copper and aluminum. But on the other hand, we can see that this useful industry harms the environment by releasing carbon monoxide, sulfur dioxide and nitrous oxide into the atmosphere.