Which statement describes two parallel lines? A. They do not intersect and they lie on the same plane.
B. They do not intersect and they do not lie on the same plane.
C. They intersect at a point and form right angles.
D. They intersect at a point but do not form right angles.

Match your vocabulary word to its definition. 1. emigration 2. immigration 3. migration 4. overpopulation 5. sustainable development 6. under population 7. unsustainable development 8. urbanization the movement from one place to another the number of people exceeds the available natural resources in an area leaving one's homeland to settle in a new place the increase in the population of a city the movement of people to a new country the ability to meet current needs without reducing the ability to meet future needs resources being used up at a faster rate than they can be replenished birth rate insufficient to replace the existing population