NOTES--------------------------------------------------------------------------------
313,416,775 people in the united states
Definition:
Birth rate- number of live births per 1000 people in a year.
Fertility rate- Average number of babies a women has over a life time in a certain area.
death rate- A number that shows how many people died in a particualr place at a particular time.
population growth rate- The rate population grows on earth.
rate of natural increase- Diferance between live bearths and deaths in a year.
population density- how many people live in a given area.
life expectancy- The number of years that one is expected to live. united states (81.73)
carrying capacity- maximum population in a certain enviorment before it starts to break.
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1. According to the video, who or what might be the biggest threat to planet Earth?
ourselfs
2. What effects does overpopulation have on Earth?
Low food, space, water, energy,pollutuion,deforestation,human suffering
3. How does world population growth effect water, food and energy?
More demand less suply
4. Where is the world's population data held?
United Nations new york
5. What is the United Nations?
group of countries that get togehter to talk about what they can do for peace
6. How many people will live on Earth by 2050?
9 billion
7. Where is the greatest population growth going to take place?
Africa
8. What has kept the world's population in check for most of human history?
desiese,lack of food and safe drinking water
9. Why did the population boom starting in 1800?
Cures for desieses so people lived longer
10. What did Malthus say the problem of population growth is?
The power of population will overtake earths striength
11. How many people lack access to safe drinking water in the world?
2.5%
12. What is the importance of water to people and Earth?
we use it for everything.
13. Why not just desalinate sea water?
costs a lot
14. What did Iowa farmer Norman Borlaug do that helped the world's food supply?
he taught other countries how america got their food
15. What are some developed countries doing in developing countries in regards to farming?
new machines,pestacides ect.
16. According to the host of the video, what three things must people do to ensure that future generations have enough food and resources?
population,rescroses,better technoagy
17. What did China and India do in the 1970's to try to reduce population? Which country was successful?
staralization
18. What two things are very important to women(and men as well) in helping bring down the fertility rate?
education
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