Leaving food out in temperatures between -17°C and 45°C. That's the danger zone!
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
Answer:
engine exhaust, domestic heating, volcanic eruptions
Explanation:
Answer:
Kinda yes
Explanation:
This is a sign that you're becoming obese or is already.
