Outdoor air pollution has been associated with _____ deaths each year.
between 40,000 and 50,000
as many as 200,000
5,000
10,000 to 20,000
1 answer
as many as 200,000
between 40,000 and 50,000
as many as 200,000
5,000
10,000 to 20,000
1 answer