study 9/11 questionsNews to know! links and videos.\test wednesday.population power point.!
~
1. According to the video, who or what might be the biggest threat to planet Earth?
Human population.
2. What effects does overpopulation have on Earth?
Lack of food, water and supplies
3. How does world population growth effect water, food and energy?
There will be less
4. Where is the world's population data held?
United nations in New York.
5. What is the United Nations?
organization set up with security and to keep peace.
6. How many people will live on Earth by 2050?
9 billion.
7. Where is the greatest population growth going to take place?
Britan, Us. India China, Japan russia germany eastern europe will shrink. South african
So the less develpoded countries.
8. What has kept the world's population in check for most of human history?
nature. weather.disease. natural disasters
9. Why did the population boom starting in 1800?
control of death rates
10. What did Malthus say the problem of population growth is?
The power of the population is greater then the power of man. going to grow so much that tere wont be enough food.
11. How many people lack access to safe drinking water in the world?
over 1 billion. 50%
12. What is the importance of water to people and Earth?
Same exact amout of water there had ever been. 1% of fresh water humans can use. not much people have access to water. die without water.
13. Why not just desalinate sea water?
Extreamly expensive, damaging to our seas. And uses to much energy;
14. What did Iowa farmer Norman Borlaug do that helped the world's food supply?
Green Revalution, Developed high disease resistance crops.
15. What are some developed countries doing in developing countries in regards to farming?
Africa Mexico Brizil Buying land then farming the land the sending the crop up to the people who bought it.
16. According to the host of the video, what three things must people do to ensure that future generations have enough food and resources?
reduce the growth of population, stop consuming reasorses and change technology.
17. What did China and India do in the 1970's to try to reduce population? Which country was successful?
one child policy.Males had disectumy and china was.
18. What two things are very important to women(and men as well) in helping bring down the fertility rate?
conterseption and education
Comments