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: Staying up late is rather tempting and can be ever so weary. However, I fight the temptation and grasp what will I have to overcome it and go to bed on time.
Explanation:
This question doesn’t make any sense
Answer:
Always check your surroundings to ensure that there are no active hazards. If there are, you will need to either remove the hazard (if it is safe to do so), or prevent others from entering the area until first responders arrive.