What do people in a society need to do to obtain rights?​

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

There are 25 elements found in living things. how many of these elements are found in some organisms but not all? 1 , 6 , 19 , 25

Alexander stephens’ opinion on secession and compromise led to what being written? a)the kansas-nebraska act b)the missouri compromise c)the u.s. constitution d)the georgia platform