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Q11: Coronas can be easily distinguished from 22<sup>○</sup>halos
Q28: Which of these is the most important
Q36: If you want to see the glory
Q38: Carbon dioxide is the only greenhouse gas
Q47: The Air Quality Index measures the severity
Q58: Global warming is obviously associated with temperature
Q58: Until the Industrial Revolution, humans had no
Q66: Which of the following is NOT a
Q92: Pollutants emitted directly from identifiable sources are
Q104: A mirage is a real image and