air
atmosphere
blue
chemical
chemistry
chimney
climate
cloud
concept
dioxide
dirty
earth
ecology
effect
energy
environment
environmental
exhaust
factory
fuel
fume
gas
global
greenhouse
hazard
industrial
industry
manufacturing
nature
ozone
pipe
plant
pollute
polluting
pollution
power
problem
refinery
sky
smog
smoke
steam
technology
tower
toxic
vapor
warming
waste
white
定額
White smoke coming out of industrial chimney with blue sky background. Air pollution, greenhouse effect and global warming problem concept.の素材 [FY310110564708]
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