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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The two big advantages in <span>education during the middle ages were the making of universities for higher studies and the style of writing with lower case letters. There were other advances as well but these two were the most significant advances. I hope that this is the answer that has come to your help.</span>
Answer:
- A Socratic Circle (also known as a Socratic Seminar) is a systematic procedure used to examine a text or explore a concept through a series of questions and answers founded on the beliefs that all new knowledge is connected to prior knowledge,
Explanation:
ANSWER: The first missiles to be used operationally were a series of missiles developed by Nazi Germany in World War II. Most famous of these are the V-1 flying bomb and V-2 rocket, both of which used a mechanical autopilot to keep the missile flying along a pre-chosen route.
