Which development would best serve as a turning poit between two historical periods

What do most climatologists see as a major cause of rising global temperatures? a. earth's closer proximity to the sun due to its gravitational pull b. greenhouse gases produced by burning fossil fuels c. rising ocean levels caused by melting polar ice sheets d. water pollution cause by industrial waste

Which man believed that african americans should actively fight for the rights they deserve, even if they put their lives in danger?

Why was one vote per day a weakness of the articles of confederation