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Env.Sci 2017 final v1

Across
Countries without clean water, electricity, technology or education.
The study of the makeup of human populations
The growth of a population that is based on a squaring
How spread out a population is
The total number of offspring a species is capable of producing
The average age of death
(Births + immigration) - (deaths + emigration)
The number of members of a species in an area
The distribution of populations by age
Down
The effects of economic and social structures on growth
Land that is able to grow crops
How many individuals per unit area
The movement of a population from one area to another
Roads, hospitals, education, clean water, etc.
The movement of a population from a rural setting to an urban setting
Babies per year
The total population an area can sustain