1. emigration leaving one's homeland to settle in a new place 2. immigration birth rate insufficient to replace the existing pop
ulation 3. migration resources being used up at a faster rate than they can be replenished 4. overpopulation the movement from one place to another 5. sustainable development the increase in the population of a city 6. underpopulation the number of people exceeds the available natural resources in an area 7. unsustainable development the ability to meet current needs without reducing the ability to meet future needs 8. urbanization the movement of people to a new country
"Organic" food distribution. Community markets were developed during the Mayan civilization to help get food to the people. Like today's farmers markets, the Mayans were able to connect with their growers and get the freshest foods available. It made for healthier diets and a strong market economy.
After looking at the photograph and reading the information given, the number of days I calculated from the moon phase at position A as seen from earth is any value from 14.0 to 15.0 days. So either will be correct.