on april 7 1980, the u. s. imposed an embargo on exports to iran due to the iran hostage crisis. how many days did the hostage crisis last?

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.

Alexander hamilton was one of the most important of the founding fathers. which of the following is he responsible for? select all that apply.

Explain the changes that took place in the field of agriculture in india due to the green revolution in the late 1960.