What is the difference between a tornado and a hurricane?
|A)||They are the same things.|
|B)||Tornadoes occur over sea and hurricanes occur over land.|
|C)||Tornadoes occur over land and hurricanes occur over sea.|
|D)||Tornadoes happen during winter and hurricanes happen in the summer.|
When two air masses of different densities collide, it's called__________.
|C)||a high pressure zone|
When the temperature reaches its ____ , snow, rain,or hail is likely to form.
Weather refers to the state of the atmosphere__________.
|A)||at a specific temperature|
|B)||over a long period of time|
|C)||at a specific time and place|
|D)||over a short period of time|
What causes wind?
|B)||Air moves from regions of high pressure to regions of low pressure.|
Cumulous clouds are associated with __________.
|C)||fair weather and rainstorms|
The prefix cirro added to the suffix cumulus, cirrocumulus refers to __________.
|A)||low, puffy, white clouds|
|B)||high, curly clouds|
|C)||high, puffy, white clouds|
|D)||middle-level, flat, even clouds|
____ is the measure of amounts of moisture in the air compared to the amount needed for saturation at a certain temperature.
An anemometer measures_____.
What is the cause of the strong winds associated with thunderstorms?
|A)||strong updrafts of warm, moist air and sinking, rain-cooled air|
|B)||weak updrafts of warm, moist air|
|D)||strong updrafts of dry air|
What causes low-pressure winds to swirl in a counter-clockwise direction?
|A)||Earth's revolution around the Sun|
|B)||the natural tendency of winds to blow from low to high pressure|
Of the four main types of precipitation, which refreezes after melting near the ground?
What creates a wind shear?
|B)||a difference in wind direction and speed|
|D)||similar wind speeds and directions|
What type of clouds form thunderstorms?
An occluded front occurs between _______ air masses.
|B)||an unknown number of|
How do isobars help meteorologists predict weather?
|A)||They help meteorologists predict dry weather.|
|B)||They help meteorologists tell how fast wind is blowing by noting how far apart isobars are placed on a weather map.|
|C)||They help meteorologists tell how fast wind is blowing by noting how closely isobars are placed on a weather map.|
|D)||They help meteorologists see areas of equal temperature.|
Stratus clouds form __________.
|B)||puffy white clouds|
|C)||fibrous, or curly, clouds|
|D)||layers of even sheets in the sky|
The term stationary front describes a front __________.
|A)||that continues forward|
|C)||that is present for a brief amount of time|
|D)||that stops advancing|
What does water vapor condense around to form clouds?
|B)||small particles like dust and salt|
What element of air determines its temperature?
|A)||the arrangement of air molecules|
|B)||the direction of air molecules|
|C)||the composition of air molecules|
|D)||the average motion of air molecules|