Environmental Science 14th Edition by Tyler Miller ,Scott Spoolman

تمرين 22

List nine factors that affect birth rates and fertility rates. Explain why there is a bride shortage in China. Define life expectancy and infant mortality rate and explain how they affect the population size of a country. Why does the United States have a lower life expectancy and higher infant mortality rate than a number of other more-developed countries What is migration Describe immigration into the United States and the benefits and issues it raises.