| A | B |
|---|
| The percentage of oxygen in our atmosphere | 21% |
| The percentage of nitrogen in our atmosphere | 78% |
| Hurricanes must have wind speeds of _______ MPH | 75 |
| Water vapor as a gas will change into a liquid by the process of | condensation |
| At what point does air become full of moisture? | dew point |
| Air that is holding as much moisture as it can is | saturated |
| Tornadoes, hurricanes, and thunderstorms are all areas of ________ air pressure | low |
| Which type of clouds are very low and close to the Earth's surface? | stratus |
| Which clouds are made of ice crystals? | cirrus |
| Which type of clouds are thick, puffy clouds? | cumulus |
| What happens to air temperature as altitude increases? | decreases |
| Clear, cool weather is brought by ________ air pressure | high |
| Hot air weighs _________ than cold air | less |
| Which holds more moisture, warm air or cold air? | warm |
| Symbols for a front point in the direction the front is doing what? | going to |
| How many miles per hour might winds be in a tornado? | 200 |
| How many pounds per square inch is normal air pressure? | 14.7 |
| What happens to air pressure as altitude increases? | decreases |
| What instrument measures air pressure? | barometer |
| What happens to the weight of air as the temperature increases? | decreases |
| Air pressure at the eye of a hurricane is the | lowest |
| When is hurricane season in NY? | June to October |
| Which is the most violent type of storm? | tornado |
| What does acid rain do to plants? | kills them |
| If hazardous weather conditions are likely to occur very soon, the Weather Bureau will issue a weather __________ | warning |
