Zusammenfassung der Ressource
Frage 1
Frage
How many people does air pollution kill annually?
Antworten
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5,000
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700,000
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3.3 million
Frage 2
Frage
Which of the following is a common effect of air pollution?
Frage 3
Frage
Human activity is the main cause of air pollution
Frage 4
Frage
Which of the following percentages do developed countries contribute to air pollution?