Answer:
Your nails can help determine the oxygen supply throughout your body because it has an affect on your life. Blue fingernails are caused by a low level or lack of oxygen circulating in your red blood cells. This condition is known as Cyanosis.
Explanation:
This means that there is not enough oxygen in your blood
Option A is the correct answer
<span>People who worry that a safety belt wrinkles
their clothes can or might get involved in an accident. Belts are placed inside
transportation vehicles for only one purpose---to ensure the safety of the
passengers. Getting worried about the effects of the belt on your clothes is an
invalid reason to keep you safe from the moving vehicle. So make sure to always
buckle up for your safety and… Don’t mind the wrinkles! No one will notice that
while you’re walking down the street what matters is you’re alive and safe. </span>
<span> </span>
<span> Physical fitness is a goal; exercise is a means to reach that goal.
Physical fitness is a quality and strength of the state of muscles, heart, and ligaments. Exercise is an action that increases the quality and strength of the state of muscles, heart, and ligaments.</span>