Fire drills and earthquake drills also have an emergency number like 911 and closest family members phone number
It means the completion or approval of a finished and definitive version of something.
The answer is letter
D.
<span>
Communicable diseases
are also known as infectious or contagious diseases. They may come from food,
water, animals, another person, or anything that comes from the environment. <span>Airborne
viruses, bacteria, blood, and bodily fluids can cause the spread of these
diseases. The most common communicable disease is the flu, which can easily
spread in an enclosed environment with a recycled circulating air (e.g.
air-conditioning). Infectious disease caused by blood contact like HIV/AIDs are
also dominant in society. </span></span>
