Dr. Kozlov is meeting with her research team this afternoon to discuss a new study that they will be conducting. To make sure that the likelihood of placement in a given group is identical for every participant and that the treatment and control groups are roughly equal on all characteristics, they will be using:

answer; i believe that the correct answer is (d); // supercontinent

it depends on which society you are referring to. many civilization performed rituals so the gods would with their growing season but the most well known is that of the aztecs. they would make sacrifices, usually animals, but sometimes humans as well.

answer; a team- maintenance role;

spain, portugal, france and england.

explanation:

spain, portugal, france and england were the first european country to carve an empire in the americas.

you gave no answer choices so, i gave you all of the correct countries.