Read about the events and causes leading up to world war i and world war ii. write an essay about how those causes and events are similar and different. discuss what characteristics of the world today are similar to the causes of the world wars. your essay should be at least three hundred words. your essay should have an introduction which answers the prompt and gives a preview of what will be discussed. your body paragraph will provide more details and back up your statements with facts that are cited.

Migration the ability to meet current needs without reducing the ability to meet future needs 2. immigration the leaving of one's homeland to settle in a new place 3. migration a situation in which the birth rate is not sufficient to replace the existing population 4. overpopulation the movement of people to a new country 5. sustainable development the increase in the population of a city 6. underpopulation a situation in which resources are being used up at a faster rate than they can be replenished 7. unsustainable development a situation in which the number of people exceeds the available natural resources in an area 8. urbanization the movement of people from one place to another