ANSWER:
Cardiac output(CO) in L/min = stroke volume(SV) X Heart rate(HR)
Therefore,
CO= 100 x 75= 7500 ml/min
CO= 7.5 L/min
EXPLANATION:
CARDIAC OUTPUT is the volume of blood, pumped by the heart, that goes through the systemic circulation every minute. It is determined by the stroke volume and heart rate.
STROKE VOLUME is the volume of blood ejected from the ventricles of the heart in each contraction.
HEART RATE is the number of times the heart beats in a minute.
Depends on what you're looking at. Colors seem to have a role in how we feel, out heart rate. But being able to look at calming scenery, of bright greens and blues is calming because it's the colors of life, and our minds sees the colors and we instantly become more calm. Green is calming because it's color that is found quite frequently in nature, so essentially it's good.<span />
I would have to say the answer is C.
A is incorrect since hydrogen is not an air pollutant.
B is incorrect because ozone is most definitely one of the top.
And D has cyanide which is a chemical for suicide during wars.
Hope this helps!
