Answer:
Oxygen is a chemical element that constitutes 21 percent of the Earth's atmosphere, that is capable of combining with all elements except some noble gases, that is active in physiological processes of almost all known organisms, and that is involved especially in combustion — see Chemical Elements Table.
Explanation:
hope it helps
good day (≧▽≦)
C. higher energy levels
When exercising, your body releases a chemical that actually boosts your mood, giving you more energy.
I know this is scary....
They're acknowledging the fear that the patient has and are also communicating hope by being positive.
