I think that oxygen is needed , because it helps elevate the blood level and help oxygen spread to your brain/ heart.
Answer:
an disease caused by the lack of some essential or important element in the diet, usually a particular vitamin or mineral.
Their brittle bones and blood clots
Go With the Traffic Flow. Ride on the right in the same direction as other vehicles. ...
Obey All Traffic Laws. A bicycle is a vehicle and you're a driver. ...
Yield to Traffic When Appropriate. ...
Be Predictable. ...
Stay Alert at All Times. ...
Look Before Turning. ...
Watch for Parked Cars.
A witness has to be at least 18 years of age. They can be a stranger or a family member. There is no rule that a person of the treatment team can't be a witness but it's is not recommended and is not advised to do so.
Hope this helps! ^-^
