Réponse : J'ai fait un peu plus de 10 lignes.
Pollution is the degradation of an ecosystem or the biosphere by the introduction, generally human, of entities (physical, chemical or biological), or of radiation altering the functioning of this ecosystem. Pollution has important effects on health and the biosphere, as evidenced by exposure to pollutants and global warming which transforms the Earth's climate and its ecosystem, causing the appearance of previously unknown diseases in certain areas. geographic, migrations of certain species, or even their extinction if they cannot adapt to their new biophysical environment. According to the WHO (World Health Organization) in its air guidelines (summary of risk assessment, update 2005): "Breathing clean air is considered a condition essential to human health and well-being. Air pollution, however, continues to pose a significant health threat worldwide.
