Ais a system of government in which states retain sovereign authority except for powers expressly delegated to a national government. a. bicameral state b. republic c. unitary state d. democracy e. confederation

A confederation is a system of government in which states retain sovereign authority except for powers expressly delegated to a national government.

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.