| A | B |
|---|
| average | the quantity found by dividing the sum of all the quantities by the number of quantities |
| plunge | to fall or move suddenly downward |
| streamlined | shaped so as to cause the least possible resistance to motion through air or water |
| weightlifters | people who train their bodies to lift heavy weights |
| depth | the distance from the top to the bottom |
| deserts | dry, sandy regions without water and trees |
| outrun | to run faster than someone or something else |
| peak | the pointed top of a mountain or hill |
| tides | the rise and fall of the ocean about every twelve hours |
| waterfalls | streams of water that fall from a high place |
| extreme | much more than usual; very great |
| precipitation | the water that falls to the earth in the form of rain, snow, sleet, or hail |
| temperature | how hot or cold something is |
