Day 22- Crude poplation rates

Today in class we learned about birth rates and death rates. The birth rates are found by using crude birth rates. A crude birth rate is how many births per one thousand people. Crude death rates are the same thing for how they are measured. The crude death rate is subtracted from the crude birth rate to give you the natural population increase or decrease. Most countries have positive rates, but some don't such as Italy where the rate is negative and going down. The united states of America  have a lesser value than Canada which has a rate of 5. Migration is also a factor in determining population change. When some migrates to another country, they are both an emigrant and an immigrant. The final thing we learned in class was that the one child rule that was in china was appealed which I thought was still being used