100 words essay on pollution
Pollution is the introduction of harmful contaminants into the natural environment. (one in six deaths). This remained unchanged in 2019, with little discernible progress against pollution. 34 of these earlier deaths were caused by air pollution. There are various definitions of pollution, some of which recognize specific types, such as noise pollution or greenhouse gases. Pollution is defined by the United States Environmental Protection Agency as “any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or pose a health hazard.” The presence of pollutants and contaminants usually reduces the usefulness of a natural resource.” The United Nations, on the other hand, defines pollution as the “presence of substances and heat in environmental media (air, water, land) whose nature, location, or quantity causes undesirable environmental effects.”