A hierarchy of authority is <span>a control mechanism for making sure the right people do the right things at the right time.
This is why a hierarchy of authority is so important, especially in the army and other military organizations. It has to be clearly stated who's in charge, and who's ordering others what they are supposed to do in order to ensure the success of the operation and avoid any failures.
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I would call Homeland Security. Their duties are not just
about preventing terrorist activities but also preventing man-made and natural
disasters as well. They respond to large
scale emergencies as part of their mandate to protect the U.S. and its
territories from threats that are either man-made or natural in nature.
I’m gonna say whatever the other guy says
Answer: (1) visible light, with wavelengths between 0.4 and 0.8 micrometre, (2) ultraviolet light, with wavelengths shorter than 0.4 micrometre, and (3) infrared radiation, with wavelengths longer than 0.8 micrometre.
Explanation: <em>hope that helps :p</em>