Most (68%) of the earth's freshwater is found in both glaciers and icecaps.
Answer:
A. Concentric rings of different agricultural activities surrounding a city in the midwestern United States.
Explanation:
It represents the price variety that a house-hold (or firm) would be responsible to spend at numerous locations in order to accomplish a given level of compensation (monopoly/ profits). The enterprise that has the most high-priced bid rent is probably the movement that will occupy this neighborhood.
Social, cultural and economic factors influence fertility, mortality and migration rates. Migration is affected by various factors like age, sex, marital status, education, occupation, employment etc. Age and sex are main demographic factors that affect the migration.