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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As of China, they use the system called "mandate of heaven" to select their emperor. The Mandate of Heaven is like god. The gods select who should be their next emperor
Answer:
C or D. I think that it is C.
Explanation:
Answer:
Aryans from central Asia invaded South Asia and introduced the caste system as a means of controlling the local populations.
Explanation:
The founding of Rome can be investigated through archaeology but traditional stories handed down by the ancient Romes themselves explained the earliest history of the city in terms of legend and myths.
