What below is a great strategic and economic value because of its location in Central America? Group of answer choices

Suez Canal

St. Lawrence Seaway

Panama Canal

Straight of Gibraltor

PLEASE ANSWER :3

What extraordinary role does learning think we can play in the universe?

Which social media guideline defines what to do if you find a fabrication on a social media site?

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.