Which answer best describes the effects that improvements in transportation had on the United States economy in the 1800s? A) They made it easier to move money more quickly. B) They made it easier for Americans to take vacations. C) They made it easier to move goods more cheaply and quickly. D) They made it easier for Americans to get their jobs each day.

What do sensory neurons do? for science

Who is the speaker in this excerpt from book 13 of homer’s odyssey, and what inference can you make from the tone?

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.