With what civilization is hammurabi associated

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. she randomly selects ten schools from the district and interviews all of the teachers at the selected schools. which type of sample did she use in this study? a)systematic sample b)probability sample c)stratified sample d)cluster sample

What event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid—1800s

What is it called when countries build lots of weapons to store and them in case of a war?