Which organization created a rating system for hurricanes based on their intensity?

List of social classes of the shang dynasty in order ?

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy

30 points! asap. in 3 to 4 sentences, summarize the key features of the jewish law.