| A | B |
|---|
| on the other hand | seen in a different way |
| opportunities | chances for advancement |
| oxygen | a colorless, odorless gas (chemical symbol O) present in air, which is necessary for all forms of life |
| passed a law | approved a government rule |
| paths | narrow ways for walking |
| positions | jobs; places |
| positive | optimistic, hopeful |
| predict | to say what will happen in the future; to foretell |
| published | printed and distributed to the public |
| rechargeable | able to be energized again |
| recyclables | items that can be used again |
| region | area |
| relatives | people connected by blood or marriage to someone, relations |
| remaining | still existing |
| revealed | showed |
| roots | parts of plants that grow downward into the soil and bring food and water upward |
| sociologists | people who study human relationships and the way these relationships affect their world |
| sources | roots; origins; starting points |
| stabilized | reached a calm, undisturbed state |
| standard of living | the overall quality of life that people experience |
