Today we went over the African map and got assigned our assigned blog. I got Swaizi Land. Then we continued watching the "How Many People Can Live on Planet Earth" video.
1. According to the video, who or what might be the biggest threat to planet Earth?
Ourselves.
2. What effects does overpopulation have on Earth?
There will be less food, global warming, less paying jobs (more poverty.)
3.How does world population growth effect water, food and energy?
There is going to be less resources. When there is going to be less water, that leads to less food and energy.
here is the world's population data held?
New York City.
5. What is the United Nations?
A peace keeper.
6. How many people will live on Earth by 2050?
9 Billion.
7. Where is the greatest population growth going to take place?
Niger.
8. What has kept the world's population in check for most of human history?
Disease, and lack of food and water because of droughts.
9. Why did the population boom starting in 1800?
We had better medicines then.
10. What did Malthus say the problem of population growth is?
Demand for food will outstrip the production of food.
11. How many people lack access to safe drinking water in the world?
Over a billion. 70% of the Earth is water. 2% of that is freshwater and only 1% of the 2 is available to us.
12. What is the importance of water to people and Earth?
To survive. Plumbing, animals, crop irrigation. They also use it to make things likeclothing or anything in factories.
13. Why not just desalinate sea water?
It is extremely expensive, the byproducts are harmful to the sea, and it uses a lot of energy.
14. What did Iowa farmer Norman Borlaug do that helped the world's food supply?
He taught the poorer countries a faster way to do cropping. In some counties the food increased by 5 full.
15. What are some developed countries doing in developing countries in regards to farming?
Buying land and growing crops on the land.
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 population, produce more recources, and have better technology.
17. What did China and India do in the 1970's to try to reduce population? Which country was successful?
China had a one-child policy. You could have more than one if you paid for it. India had vycectime fairs. At first it was volunterably but it got ugly.
18. What two things are very important to women(and men as well) in helping bring down the fertility rate?
Education. Most well educated women are wanting to have less and less children. Contreception is the second key. Religion basically preaches against it though.
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