Across
- 1. study of human population statistics
- 3. mostly developed land covered mainly with buildings and roads that has a human population of 2500 or more
- 8. how a population changes in size during a specific period of time
- 13. a model that explains the change from high birthrates and death rates to a condition of low birthrates and death rates
- 18. a line that city planners draw on a map to separate urban areas from areas the city would prefer remain rural
- 19. how likely a given substance will cause harm
- 21. viruses, bacteria, and other organisms in the environment that harm human health
- 25. a colorless, odorless, highly toxic radioactive gas
- 28. computerized system for storing, manipulating, and viewing geographic data
- 29. a philosophy of urban growth that focuses on economic and environmental approaches that lead to sustainable growth and the avoidance of sprawl
- 30. the practice of restoring native communities
- 33. diseases caused by a pathogen
- 35. number of babies out of 1000 that die during their first year of life
- 36. study of disease in human population
- 37. average number of years an individual is expected to live
- 38. any other type of land use or land cover that is not urban
- 42. strips of vegetated open space that connect parks or neighborhoods
- 43. began in the mid-1700s, shifting from rural life to urban societies
- 44. the amount of a substance an organism is exposed to
- 45. total fertility rate for a nation that would keep its population stable
Down
- 2. an area in which the temperature is several degrees higher than that of the surrounding area
- 4. refers to the vegetation and manufactured structures that cover land
- 5. human activities that occur on land and are directly related to the land
- 6. factors that threaten or are harmful to human health
- 7. chemicals that affect the nervous system
- 9. a disease that has appeared in the human population for the first time, or that has existed for a while but is increasing rapidly or spreading around the world
- 10. a mineral that forms long, thin microscopic fibers that can cause lung disease
- 11. with each step up the food chain, concentrations of toxic substances can be greatly magnified
- 12. organisms that build up large concentrations of toxic substances in their bodies
- 14. study of how poisonous substances affect an organism's health
- 15. study o fhow environmental factors affect human health and our quality of life
- 16. chemicals that harm embryos and fetuses
- 17. shift of population from the countryside to urban areas
- 20. matter or energy released into the environment, causing negative effects that impact people, wildlife, and other aspects of the environment
- 22. relationship between different doses and the responses they generate
- 23. chemicals that cause cancer
- 24. facilities, services, and installations needed for the functioning of a community
- 26. average number of children a female member of a population has during her lifetime
- 27. process of measuring risk
- 31. attempt to design cities so as to maximize their functionality and beauty
- 32. depends on two factors: one, what the substance is and two, how much of the substance is needed to cause harm
- 34. the spread of low-density urban or suburban development outward from an urban center
- 39. the effect an organism shows as a result of exposure
- 40. the practice of classifying areas for different types of development and land use
- 41. refers to the differences in assets and income between individuals in a society or between nations