Which statement accurately compares the articles of confederation with the us constitution? a: the articles of confederation didnt allow for a president, the us constititution created the office for a president. b: the aoc were intended to be a temporary document , the us const. was intended to be permanent. c: the aoc allowed the states more freedom, the us const. gave the fed. government total power over states. d: the aoc didnt allow for states to levy taxes, the us constitution gave stayes the power to tax their own citizens. just pick a b c or d and me : )

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.

Sariah enters a room with several chirping crickets in it. upon first entering the room, sariah can hear the chirping; however, as she begins to talk to her friends, she is no longer aware of the chirping even though it is still there. the fact that sariah no longer perceives the chirping sound demonstrates sensory

Can someone me answer all the questions?