the answer to that is RESPIRATION
Oxygen.
the answer to that is RESPIRATION
A human breathes about 9.5 tonnes of air in a year.
A grown human breathes about 7.2 kilograms of oxygen in a given a day. This may vary based on the activities that they are engaged in.
When a person ingests or breathes in too much lead for their body to naturally process, they are at risk for lead poisoning.
When a person ingests or breathes in too much lead for their body to naturally process, they are at risk for lead poisoning.
As a person breathes CO contaminated air, more and more oxygen transportation sites on the hemoglobin molecules become blocked by CO. Gradually, there are fewer and fewer sites available for oxygen.
well I think this is so, because our body need more oxygen than it does, when we are sleeping or relaxing, this is so because our lungs and muscles that lift the the ribs are tired and need oxygen to keep them going. Just a guess, nothing much! Peace!
200,750
This happens because gravity pulls you down but the oxygen and air in your lungs and body help you stay afloat. This creates a bobbing motion.
when a person takes a wiff of freash air and breathes it out the airthe breath out is turned into carbon diaxide and that help make food for the plants a process called photosynthisus
It contracts (and moves downward).