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Which of the following components of the human eye forms the iris?
Nitrogen
Nitrogen is a chemical element with the symbol N and atomic number 7, making up about 78% of the Earth’s atmosphere and essential for all living organisms.
Flint, Michigan
A city in the United States known for its industrial history and a water crisis that exposed residents to lead-contaminated water.
City Life
The characteristics and daily experiences of living in densely populated urban areas, including the social, cultural, and economic facets.
Rural Areas
Locations characterized by low population density and large open spaces, often associated with farming or agriculture.
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