The Kievan rus developed close ties with the Byzantines leading early Russia to adopt ___ The First Russian empire revered the roman and byzantine empires, and adopted the title of ___ for its emperors in honor of former rulers in Rome.
Eastern orthodoxy,
Roman Catholicism,
Greek fire, Caesar, Patriarch, Tsar

Which idea is central to democracy in the united states? everyone has an equal right to consumer goods. people should not compromise to settle differences. the minority has authority over the majority. freedom must be balanced with respect for the law.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period.the collection of data, by a playground designer hired by the superintendent of schools, about the physical dimensions of school playgrounds, presence of fencing, and the kinds of equipment currently provided.a feasibility study for implementing a year-round school program, focusing on economic issues such a facilities utilization and transportation costs.an analysis of aggregate data comparing statewide high school graduation rates provided by the state department of public instruction, using county tax information.

The biggest component / ingredient of summer time smog is