(1 point) The World Bank designated indoor air pollution as one of the four most critical global environmental problems. Provide and explain ONE example of a major source of an indoor pollutant to illustrate how the issue of indoor air quality in less developed countries differs from that in more developed countries.

Secondary pollutants_________

The following image illustrates a meteorological phenomenon called____________

4.) In 1947 this man became the first African American to play professional organized baseball in the modern era, when he took the field for the then Brooklyn Dodgers, effectively breaking the color barrier and paving the way for the thousands that would come to follow in the decades since?

13.) The election of 1960 between these two men­­­­­­­­­­_______, was the first to hold nationally televised debates between the leading candidates, which proved to be influential as millions more Americans voted for the candidate that took maximum advantage of this powerful new medium?  

19.) The Vietnam War reached a climax in the late 1968, when North Vietnamese and Viet Cong forces attacked U.S. and South Vietnamese positions throughout the country. This massive operation responsible for shifting American support against the war is more popularly known as?

1.) Even before the end of WWII a new struggle on the horizon seemed to threaten the future of global freedom. What is this conflict better known as ­­­­­­­_________?

8.) Which of the following enabled the rising purchase of consumer goods during the 1950s?

14.) What civil rights organization planned some of the first sit-ins located in Greensboro, North Carolina?

18.) The Stonewall incident that catalyzed the gay rights movement occurred when?