The start of the war in Europe is generally held to be 1 September 1939<span>, beginning with the German invasion of Poland; Britain and France declared war on Germany two days later.</span>
I believe the answer is education.
Answer: B. As more people move to China's cities, pollution has steadily increased.
Explanation:
The key to the graph shows us that as time has gone by, the number of people moving to Chinese urban areas has steadily increased from 12.5% in 1952 to 39.1% in 2013.
In that time, pollution in the form of CO2 emissions has increased steadily as well. If one were to draw a correlational relationship from this, it would be that as more people moved to urban areas, Chinese pollution has steadily increased.
The movement against U.S. involvement in the Vietnam War began small–among peace activists and leftist intellectuals on college campuses–but gained national prominence in 1965, after the United States began bombing North Vietnam in earnest.
