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The graph below displays air pressure data collected over a 7-day period.
When did a low-pressure system move through the area?
between day 1 and day 2
between day 2 and day 3
between day 4 and day 5
between day 6 and day 7
A meteorologist observes a decrease in air pressure and predicts a chance of light to moderate precipitation with warmer temperatures. Which frontal system is most likely approaching?
What is the best evidence to support that an occluded front is occurring?
A warm and cold front collide and remain motionless.
Cool air sinks and warm air rises, creating a convection current.
A cold front pushes warm air upward, and the cold front collides with a cold front.
A warm front pushes into the area, creating clear skies and warm weather.
Which result most likely occurs when cold and warm air masses collide?
The cold air mass pushes under the warm air mass.
The warm air mass pushes under the cold air mass.
The cold air mass and the warm air mass remain stationary.
The cold air mass and the warm air mass mix to create a new air system.
Which statement best describes the general movement of air?
They move from areas of high altitude to areas of low altitude.
They move from areas of high pressure to areas of low pressure.
They move from areas of high humidity to areas of low humidity.
They move from areas of low temperature to areas of high temperature.
On a warm day in late October, the air temperature drops 20 degrees and a rare fall thunderstorm takes place. Which event is most likely happening with the changes in weather?
There's a occluded front moving through
There's a warm front moving through
There's a cold front moving through
There's a stationary front moving through
Which choice best explains why a low-pressure system and a high-pressure system create different weather conditions?
In a low-pressure system, air sinks, creating fair weather. In a high-pressure system, air rises, creating storms
In a low-pressure system, air rises, creating storms. In a high-pressure system, air sinks, creating fair weather.
In a low-pressure system, air rises, creating fair weather. In a high-pressure system, air sinks, creating storms.
In a low-pressure system, air sinks, creating storms. In a high-pressure system, air rises, creating fair weather.
Which best describes the measurement of the kinetic energy in air in a given area?
Which instrument measures wind speed?
Which term best describes the circulation of air and water in the atmosphere?
What is the main source of energy for weather everywhere on Earth?
Which type of large storm most likely happens when a large low-pressure system forms over the ocean in the summer?
Which type of front most likely causes a decrease in temperature?
What is between two large air masses of different moisture and air temperature?
Which type of frontal boundary is produced when warm air collides with and rises above cold air (the warm air pushes the cold)?
Which instrument reading best predicts an approaching storm?
a thermometer showing a decrease in temperature
a barometer showing a decrease in air pressure
an anemometer showing decreased wind speed
a hydrometer showing a decrease in humidity
Which best describes isobars?
Lines on a weather map connecting points of equal atmospheric pressure.
Lines on a weather map connecting points of equal precipitation.
Lines on a weather map connecting points of equal temperature.
Lines on a weather map connecting points of equal solar radiation.
Which statement best compares the weather conditions produced by warm fronts and cold fronts?
Only warm fronts produce strong storms, while cold fronts cause sunny weather conditions.
Only cold fronts produce strong storms, while warm fronts cause sunny weather conditions.
Cold fronts cause extended periods of light precipitation, while warm fronts produce strong storms.
Warm fronts cause extended periods of light precipitation, while cold fronts produce strong storms.
The rising of warm air has which effect on Earth’s weather patterns?
It causes low air pressure.
It causes high air pressure.
Air pressure is not affected.
Air pressure cannot be measured.
Which statement best explains clouds and light precipitation that last for four to five days in a particular area because air masses cannot move?
A cold front is present
A warm front is present
A stationary front is present
A occluded front is present
On a weather map, what symbols represent a quick-moving cold front?
semicircles on a solid red line
semicircles on a solid blue line
a solid red line with triangles pointing in the direction the front is moving
a solid blue line with triangles pointing in the direction the front is moving
Which statement explains what will most likely happen to the water cycle in an area where air temperatures increase?
Earthquake intensity will decrease
Mountain formation will decrease.
Rock weathering will increase.
Evaporation will increase.