| A | B |
| What type of society is the United States? | a Consumer Society |
| Mercury, arsenic, and ammonia are examples of what? | Toxic wastes |
| The eruption of what volcano in 1980 sent millions of tons of dust and gases into the atmosphere? | Mt. Saint Helens |
| The more products sold, the_____ garbage produced. | more |
| The scientist who was awarded a nobel prize for his work of the ozone layer. | Paul Crutzen |
| Air pollutants could be, gases, solids, or____ | Liquids |
| What chemical is damaging to the ozone? | CFCs |
| The simplest method of sewage treatment is called? | Primary treatment |
| What sewage treatment system uses naturally occuring bacteria to break down solid organic matte, called sludge | Secondary Treatment |
| minerals, metal ores, water, and forests are all examples of? | Natural Resources |