Smoke from factory chimneys. Emissions of air pollution and cause global warming.
Palabras clave
smoke,
pollution,
chimney,
industry,
sky,
factory,
pipe,
industrial,
environment,
steam,
air,
ecology,
power,
smog,
plant,
blue,
stack,
fume,
energy,
tower,
environmental,
toxic,
white,
gas,
chemical
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