🎴 Flashcard Mode
Public Awareness and Education about Air Pollution
Card1 / 15
Mastered0
Review0
QuestionClick to flip
Which of the following is NOT a primary source of air pollution?
AnswerClick to flip back
A
Natural sources (e.g., forest fires)
💡 Explanation:
Natural sources, such as forest fires, are not considered primary sources of air pollution as they are not directly caused by human activities.