unit 4 vocab Crossword

the maintenance of a population at a constant level by limiting the number of live births to only what is needed to replace the existing population.
the number of live births per thousand of population per year.
the ratio of deaths to the population of a particular area during a particular period of time, usually calculated as the number of deaths per one thousand people per year.
if the amount water, oil, natural gas, phosphorus, coal and rare earth elements change, what could that be an example of?
the period of time required for a quantity to double in a size or value
a geographic area that is located outside towns and cities
a residential area or a mixed use area, either existing as part of a city or urban area or as a separate residential community within commuting distance of a city
a worker who moves from place to place to do seasonal work.
the degree of wealth and material comfort available to a person or community.
a poor agricultural country that is seeking to become more advanced economically and socially.
a very large, heavily populated city or urban complex.
the average period that a person may expect to live.
the action or process of making a copy of something.
the period during pregnancy and shortly after childbirth.
the crime of killing a child within a year of birth.
the deliberate termination of a human pregnancy, most often performed during the first 28 weeks of pregnancy.
the science of improving a human population by controlled breeding to increase the occurrence of desirable heritable characteristics
the passing on of physical or mental characteristics genetically from one generation to another.
the process of making something free from bacteria or other living microorganisms.
the deliberate killing of a large group of people, especially those of a particular ethnic group or nation.