Air contamination concept
Palabras clave
warming,
global,
greenhouse effect,
silhouette,
smokestack,
smokestack,
acid rain,
air,
blue,
cancer,
chance,
chemical,
chimney,
climate,
cloud,
cloud,
contaminate,
contamination,
damage,
danger,
destruction,
dirty,
dust,
ecology,
emission,
energy,
environment,
factory,
fume,
future,
generate,
industrial,
industry,
mill,
ozone,
paper,
poison,
pollute,
pollute,
pollution,
production,
sky,
smog,
smoke,
steam,
thick,
toxic,
vapour,
waste
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