If a large number of people are enclosed in a room,then

  • A
    Oxygen decreases and carbon dioxide increases
  • B
    Oxygen increases and carbon dioxide decreases
  • C
    Both oxygen and carbon dioxide decreases
  • D
    Both oxygen and carbon dioxide increases

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Similar Questions

When the external temperature is higher than our body temperature, we regulate it by $........$, and when it is lower than our body temperature, we regulate it by $........$.

Match the following:
Column-$I$Column-$II$
$1$. $97\%$ of $O_2$ is transported$p$. Bicarbonate
$2$. $70\%$ of $CO_2$ is transported$q$. $RBC$
$3$. $100$ $ml$ of oxygenated blood$r$. $4$ $ml$
$4$. $100$ $ml$ of deoxygenated blood$s$. $5$ $ml$

Which of the following plants is able to show rolling of leaf during the middle of the day?

Which of the following is a respiratory gas?

Which of the following is not the function of the conducting part of the respiratory system?

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