how do you breath with mask on all the tieme like idk how but w...

how is the air we breath today different from 3.6 billion years ago? http://en.wikipedia.org/wiki/E...

each time you breath in, you take in 500 ml of air. the air you breath in is about 20% oxygen by vol...

If a breath of air has a volume of 1.02L at a pressure of 750 Torr and 37°C, calculate the number of...

The lenth and the breath of a rectanglar field are in the ratio 5:3 if its perimeter is 128 m, find...

Please help I cant breath with this qn, due today exam pending, thanks for taking your time to help....

if the lenght and breath of a rectangle are in the ratio 3:2,then what is the breath if the lenght i...

how do i breath

as you breath in and out you should notice the movement in you

as you breath in and out you should notice the movement in you chest stomach or shoulders

how to get rid of bad breath and yellow teeth

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