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There you go.
<u>Answer:</u>
Alerts from the national terrorism advisory system apply only to the united states and its possessions is true.
<u>Explanation:</u>
- "National terrorism advisory system" (NTAS) is a scale that is used by the US government to rate the terrorism threat since 2011.
- NTAS is formulated in replacement of 'Homeland security advisory system'.
- In 'homeland security advisory system' (HSAS) there were four levels slow, guarded, elevated, high, and severe.
- USA had attack in September 11, 2001 and about 3000 people were died.
- After the attack the government of USA formulated HSAS and NTAS was officially imposed from January 27, 2011 by ending the old HSAS.
The intensity of a sound wave is defined as the amount of energy passing through a unit area of the wave front in a unit of time. Hope this helps :D
The answer in the given choices above is -- is well developed by the time children enter the school. It is because children and adults have different views of sarcasm and the child will only know about it once he or she is interacted with other children in which he or she will likely be in a school setting.