(par 7.4.2.1 ) What is air pollution?
What is air pollution? http://eschooltoday.com/pollution/air-pollution/what-is-air-pollution.html Air pollution (say: po-loo-shun) occurs when gases, dust particles, fumes (or smoke) or odour are introduced into the atmosphere in a way that makes it harmful to humans, animals and plant. This is because the air becomes dirty (contaminated or unclean). The Earth is surrounded by a blanket of air […]
(par 7.4.2.1 ) Global dimming – from Wikipedia
Global dimming https://en.wikipedia.org/wiki/Global_dimming From Wikipedia, the free encyclopedia Dozens of fires burning on the surface (red dots) and a thick pall of smoke and haze (greyish pixels) filling the skies overhead in Eastern China. Smoke, pollution and other air particles are linked to global dimming. Photo taken by MODIS aboard NASA’s Aqua satellite The first systematic measurements of global […]
(par 7.4.2.1 ) Air pollution (taken from Wikipedia)
Air pollution http://en.wikipedia.org/wiki/Air_pollution From Wikipedia, the free encyclopedia Air pollution is the introduction of particulates, biological molecules, or other harmful materials into the Earth’s atmosphere, possibly causing disease, death to humans, damage to other living organisms such as food crops, or the natural or built environment. The atmosphere is a complex natural gaseous system that is essential to support life on planet Earth. Stratosphericozone […]