Friday, July 31, 2009

Can u help?

Areas of low-pressure usually have____


a.cloudy weather


b.good weather


c.decending air


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high pressure means good weather beacaue__


a.air masses rise


b.air masses sink, making it difficult for clouds to form


c.clouds are blowned away by wind


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The most POWERFUl severe storm is the __


a.thunderstorm


b.tornado


c.hurricane


d.front


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A(n)___ shows weather conditions at one specific location


a.isobar


b.isotherm


c.cloud map


d.station model

Can u help?
a. Low pressure means air is rising and cooling, so water condenses and becomes clouds.





b. But not because of why they say. Air at high altitudes is colder, so can hold less moisture. When it descends and warms, it can hold even more water, which reduces the relative humidity. That is why there are no clouds during a high pressure.





c. Hurricane. A tornado has more energy, but it is a lot smaller.





d. station model


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