Which of the following is an effect of the Agricultural Revolution in Middle America? A. People settled down into villages.
B. People began hunting and gathering more.
C. People stopped hunting and gathering.
D. People started having fewer children.

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

Which of the following makes a true statement about us foreign-policy

For an actor, keeping his mind on will ultimately his performance.