🎴 Flashcard Mode
Air Quality Standards for Lead (Pb)
Card1 / 15
Mastered0
Review0
QuestionClick to flip
What is the primary source of lead (Pb) in the environment?
AnswerClick to flip back
A
All of the above
💡 Explanation:
Lead (Pb) can be released into the environment from natural sources, such as volcanoes and forest fires, as well as from human activities, such as mining, industrial emissions, and agricultural practices.