Answer: The most common tones produced by sirens in the United States are "alert" (Steady) and "attack" (wail). ... Attack Warning – A 3 to 5 minute wavering tone on sirens or a series of short blasts on horns or other devices. The Attack Warning signal means detection of an actual attack or accidental missile launch. The sirens are usually for the people surrounding the area to let them know that they need to evacuate immediately.
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~Princess <3
The settlement of the frontier has defined American History.
The Constitution dictates that the presiding officer of the Senate is the Speaker of the House-<span>President pro tempore
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Answer:
b
Explanation:
the author used the words I Believe, which indicates an opinion