air pollution. Environmental issues. destruction of the ozone layer. Global warming
Palabras clave
pollution,
air,
plant,
power,
smoke,
industry,
industrial,
energy,
factory,
chimney,
smog,
environment,
global,
sky,
pipe,
warming,
technology,
atmosphere,
station,
climate,
steam,
dioxide,
fume,
white,
dirty,
chemical,
gas,
manufacturing,
toxic,
danger,
cloud,
nature,
ecology,
fog,
tower