B · TOPIK 3–4Noun
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atmosphere, air

NOUN
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NOUN
atmosphere,air
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In sentences from our articles
, .
Using a personal vehicle is much more convenient than public transportation, but in return, it increases air pollution.
Choosing between convenience and the environment · TOPIK 4 →.
After industrialization, the concentration of greenhouse gases in the atmosphere rapidly increased due to human activities.
Climate change and sustainable development · TOPIK 5 →
