Match each type of region with its description. terrain and land formations economic regions hemispheres continents, oceans, and seas nations regions divided by 0° latitude and 0° longitude arrowright regions defined by the largest land and water formations arrowright regions defined by features such as mountains, forests, and deserts arrowright regions defined by political control arrowright regions defined by the value of the goods and services they produce arrowright

using the scientific method.

abu bakr, was a senior companion and—through his daughter aisha—a father-in-law of the islamic prophet muhammad. abu bakr became the first openly declared muslim outside muhammad's family. abu bakr served as a trusted advisor to muhammad.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.