Question

In the more highly developed animals, such as humans this gas is used to regulate the
activity of the heart, the blood vessels, and the respiratory system. WORKING MUSCLES PRODUCE
A LARGE AMOUNT OF THI SUBSTANCE. Narcosis due to this gas is characterized by mental
disturbances which can include confusion, headache, low blood pressure and hypothermia. Name this
gas.

Answer 1

in my opinion the name of gas is hydrogen

Answer 2

Carbon Dioxide or $\bf{CO}_{2}$

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