Changing the numerator or denominator tells us about a country's population, food security,
and development.
• Arithmetic: people/land area
• Physiological: people/arable land
• Agricultural: farmers/arable land
Describe the three Densities?

Rah is completing a school project on the expansion of fast food restaurants across the united states. she finds a map that shows a clear pattern of restaurants beginning in the east and expanding west. this map was most likely created using the technology of