User:Josiah.C

Urbanisation
Urbanisation is when a percentage of a country's population begins to start living in cities.Urban environments produce air pollution that harm the natural environment. Much of air pollution is concentrated in and around urban areas, where automobiles and industry emit mass amounts of waste into the environment. Visible air pollution, known as smog, is present in nearly all urbanized areas. Not only are humans affected adversely by bad air quality, animals also suffer. Air pollution can also curb vegetation growth and reduce crop yields. Air pollution from human activities harm all living creatures in the urbanized world.