Child labor and massive amounts of air pollution.
Answer:
Alan Brinkley was an American political historian who taught for over 20 years at Columbia University. He was the Allan Nevins Professor of History until his death. From 2003 to 2009, he was University Provost.
Explanation:
I believe it is B. Region B.
Explanation:
I'm sorry if it's not.
I believe he was 84 years old when he passed away
Social movements..............
