Which situation would increase the scarcity of a product? A. A new production method lowers the cost of making the product.
B. Demand for the product falls, and fewer customers buy it.
C. One of only two factories that made the product shuts down.
D. A foreign country begins exporting the product in high volume.

Gemstones are commonly found in pegmatites, which are igneous rocks that are a. exceptionally mafic b. exceptionally coarse grained c. exceptionally fine grained d. extrusive, forming from lava

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics

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