1. Chapter 13 RAD Guide Friday, March 11, 2016

2. In what book did Thomas More describe his ideal state? Describe his idea. “Utopia” Population kept constant, crops controlled, & food is distributed at public markets

3. According to Malthus, how did populations increases compared to the food supply? What problem can arise from this? Populations increase geometrically (Ex. 3, 9, 18, 36) & food supply increases arithmetically (Ex. 1, 2, 3, 4) Population increases faster than food

4. What was the major difference b/w humans of 100,000yrs ago to human of 10-20,000yrs ago? Ones that lived 10-20,000 yrs ago stored food

5. Describe the 3 major reasons for population growth. 1. Agriculture: Farming provided an increase of food, standard of living rose, increased life expectancy 2. Industry: Technology improved food production & distribution, safer work environment, medicine 3. Health Care: improved hygiene, water treatment, antibiotics & vaccines Vocabulary: -Agricultural revolution -Industrial Revolution - Germ Theory

6. What major event caused a dramatic decrease in human population around 1340’s? The Black Plague (Bubonic Plague)

8. Describe the two major reasons for population decline. 1. Famine: no food, decrease in population 2. War: combat plus famine, disease & destruction of property all decreased the population

9. How is the growth rate of population determine? Subtracting the number of births & the number of deaths

10. What is the doubling time of a population? How else can doubling time be used? How long it will take before a population doubles To illustrate negative potential of uncontrolled population growth

11. What other factors besides birth & death rates contribute to size of a population? Immigration and Emigration coming INTO a country EXITING a country

12. What is demography? Describe why it’s important. Science of changing vital statistics in a human population With this additional information, plans can be made to accommodate the future needs of society

13. How does the populations of Mexico, U.S., & Sweden compare? Level of Growth Average Age Amount in Child- Bearing Yrs MexicoRapidYoungHigh U.S.SlowMiddle-ageAverage SwedenNo growthOlderLow

14. What other factors determine the needs of society? Who uses the majority of resources? Changes in technology, lifestyles, & standards of living Industrial society

15. How do increasing demands for these needs compare to the population size? Needs are expected to increase faster than population size In industrialized nations

16. How does rapid population growth directly affect the global ecosystem? 1. Greater demand on space to sustain large numbers 2. Greater demand on resources (minerals, fuels, food) 3. Humans take away space from animals

17. Explain how human health problems are connected to overpopulation. More crowding in given area, more contacts with people causes an increase in disease transmission

18. How does overpopulation affect the environment? Exhaust fumes from cars and general overuse of fossil fuels lead to global warming Destroying last amount of land for natural ecosystems Things are magnified!!

19. Describe some ways that nations are trying to control population size. Educate about birth control Not working as well as hoped Government trying to limit # of children Somewhat working because giving incentives to couples Aging in some countries can lead to economic downfall, so some countries encourage population growth

20. How are scientists trying to use technology to help control population size? Renewable resources New crops that are more productive to feed more people