What is the name for the form of dictatorship when one person holds all the power?

Lava and other matierls luanced from a volcano and into the air are referenced as

Micah is studying child behavior in playgrounds throughout the world. he wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. which approach is micah is using?

You're doing research for a public essay on alternative medicine. which of the following sources has the most reliable information? a.a post on a social networking site about the undesired side-effects of different alternative medicinesb.a recent government report comparing the results of alternative and contemporary medicine for a specified diseasec.an anonymous article on a medical website that claims the success of alternative medicined.a 2003 study conducted by a medical research center about the effects of alternative medicine