flavia9 - Ominide - 41 Punti
testo in inglese sull' inquinamento
Burdella - Sapiens Sapiens - 822 Punti
What is pollution? Stinky stuff,muck,poison and more. Some is obvious like smoke which you can see but much of it is not obvious at all. Yet you're eating it and drinking it and breathing it most of the time. And what is worse is that all this muck affects all other life on Earth. You can find pollution made by people just about everywhere on the planet. Even remote places like the Arctic are badly polluted by nasty chemicals made by people. These nasty things kill many animals and make others sick -- including penguins in the Antarctic. They also kill people and make them ill too. There's nowhere on the planet left with no pollution; not even the bottom of the sea or high up in the air. This is bad news and I'm very sad about it.
Sara.96 - Sapiens - 368 Punti
Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms.Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. Pollution is often classed as point source or nonpoint source pollution. The Blacksmith Institute issues annually a list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.
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