Yes, they are but are called bomb sirens
it was the tornado
No machine is used. The intensity of a tornado is determined by a visual survey of the damage.
"Tornado" in Spanish is the same as in English, "tornado". An alternative, "torcedor" (meaning "twister"), can be used.
The intensity of a tornado is usually judge based on an analysis of the damage, which is used to estimate wind speed.
There is no particular instrument used for measuring tornado intensity. Ratings are based primarily on damage assessment. Occasionally doppler radar has measure wind speeds inside a tornado, but such measurements are rare.
Tornado ally
A tornado alarm is a warning system that is used to alert people of an impending tornado. It is typically a loud siren or whistle that sounds when a tornado is spotted or conditions are favorable for one to occur, allowing residents to seek shelter and take necessary precautions.
yes
The damage is surveyed and where damage boundaries are is noted. This is the used to show how wide the tornado is. Note that the size is not a factor in how the tornado is rated but how intense the damage is.
the noun that pronounce predicate. they used " e or ed"
On its own, tornado is simply a noun. As with any noun, whether it is the subject or the object depends on how it is used in the sentence. In this sentence, "tornado" is the subject while "houses" is the object: "The tornado destroyed several houses." In this one, "tornadoes" is the object: "I saw a tornado."
Oddly enough, yes. On August 25, 1814 a tornado stuck Washington D.C. This was during the War of 1812 and at the time the British were occupying the city. The tornado killed a number of British soldiers.