Across
- 2. Fossil fuels are considered this type of energy... (Pg. 124)
- 4. What do aqueducts bring to California's large population? (Pg.138)
- 7. In what city did the building of levees damage the natural landscape that once protected it from flooding? (Pg.135)
- 8. Why is the United States one of the most ethnically diverse countries in the world? (Pg.129)
- 9. Which two U.S. states have the largest petroleum reserves? (Pg. 124)
Down
- 1. Why is the environmental condition of the Gulf of Mexico important to the U.S. economy? (pg.124)
- 3. As of 2011, only ten percent of Canada's ____________________ ________________ was federally protected (Pg.158)
- 5. This region of Florida provides rich habitats for a variety of animals and plant species, and has been threatened by environmental degradation. (Pg. 122)
- 6. __________ ___________ is an environmental problem in the United States because it corrodes stone and metal buildings, damages crops, and pollutes the soil. (Pg. 135)