Maximum Credit. As of 2012, the maximum credit for dependent care expenses was $2,100 a year. However, the maximum was available only to taxpayers who had paid for care for more than one dependent, had at least $6,000 in dependent care expenses during the year, and had an adjusted gross income of $15,000 or less.A look at how the credit is calculated explains where this $2,100 figure comes from.owever, the maximum was available only to taxpayers who had paid for care for more than one dependent, had at least $6,000 in dependent care expenses during the year, and had an adjusted gross income of $15,000 or less. A look at how the credit is calculated explains where this $2,100 figure comes from.
We breathe in oxygen and some of this carbon dioxide. When we exhale, we breathe out less oxygen but more carbon dioxide than we inhale. Paul Roberts, Lake Cathie. The carbon we breathe out as carbon dioxide comes from the carbon in the food we eat. The carbohydrates, fat and proteins we consume and digest are eventually converted by a number of different biochemical pathways in the body to glucose (C6H12O6).
Breathing in pure helium deprives the body of oxygen, as if you were holding your breath. If you couldn't breathe at all, you'd start to die in minutesâas soon as your body exhausted the supply of oxygen stored in the blood. But helium speeds up this process: When the gas fills your lungs, it creates a diffusion gradient that washes out the oxygen. In other words, each breath of helium you take sucks more oxygen out of your system. After inhaling helium, the body's oxygen level can plummet to a hazardous level in a matter of seconds. Advertisement. You don't have to worry about fatal asphyxiation if you're sucking from a helium balloon at a party. At worst you'll keep going until you get lightheaded and pass outâat which point you'll stop inhaling helium and your body's oxygen levels will return to normal. Of more concern is the possibility that you'll hurt yourself when you fall down.