Gas emissions and pollution of factories, polluted air and its impact on human health, greenhouse effect
Palabras clave
smoke,
pollution,
industry,
factory,
power,
sky,
chimney,
industrial,
plant,
environment,
city,
sunset,
smog,
air,
coal,
steam,
ecology,
energy,
pipe,
global,
gas,
oil,
tower,
sun,
fuel,
cloud,
landscape,
sunrise,
nature,
cloud,
evening,
orange,
morning,
dawn,
light,
dusk,
night,
blue,
silhouette,
sunlight,
refinery
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