This gas is released in human respiration_________
a.oxygen
b.water
c.carbondioxide
d.hydrosulphaid
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ANSWER
Carbon dioxide
EXPLANATION
The cells in our bodies need oxygen to stay alive. Carbon dioxide is made in our bodies as cells do their jobs. The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out.
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