| A | B |
|---|
| The process by which ice changes directly into water vapor is referred to as | sublimation |
| Relative humidity is always expressed | as a percentage |
| To express the actual amount of moisture in the air, meteorologists use | specific humidity |
| When air temperature drops, its capacity for holding water is | lower |
| The tiny water droplets that result when air is cooled by contact with a cold surface are called | dew |
| Changes in temperature that result solely from the expansion or compression of air are called | adiabatic |
| Clouds form when the water vapor in the air condenses as | the air is cooled |
| Low, sheetlike clouds are called | stratus clouds |
| The term nimbo or nimbus added to the name of any form of cloud means | rain |
| The fog that results from the nightly cooling of the earth is called | radiation fog |
| Rain that freezes when it strikes the ground produces | glaze ice |
| Clouds in which the water droplets remain liquid below 0 C are said to be | supercooled |
| In one method of cloud seeding, silver-iodide crystals are used as | freezing nuclei |
| A wide-mouthed funnel and a cylindrical container are used in making an instrument called a | rain gauge |
