How did the nile river affect ancient egypt’s development? choose all answers that are correct. a. people settled along the river for access to water. b. the fertile delta soil produced enough crops to support the growth of a large civilization. c. because the nile river is the only large waterway in africa, most africans settled there. d. flooding delayed development until dams made it safe for people to live along the river.

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?

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.

What does it mean when a government decides to do something?