8ºC
8ºC
Pollution
Air pollution is the introduction of chemicals, particulate matter, or biological materials
Pollution means dirt, degradation, contamination and disease
Air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems.
André Manuel Nº4 8ºCJoana Varela Nº16 8ºC
Pedro Santos Nº218ºC