Dont add comma is the right one
<span>If you hold your breath, <span>carbon dioxide </span></span><span>builds up in your blood
The reason for this is:
When you exhale or breathe out, you exert or let out carbon dioxide. So, if you were to hold your breath, it would build up because it is not being exerted.
Hope this helped you!
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Answer:
hi!
Explanation:
c) sadness. This is for me. Because he could not continue with his trip. And he had to leave his car lying around.
The next evidence of Christopher McCandless surfaces not far from Lake Mead in Nevada, when a ranger with the National Park Service inadvertently discovers the yellow Datsun in which McCandless drove west from Atlanta. Covered in mud, the car has been hidden under a tarp and is parked on a dry riverbed, apparently struck by a flash flood. There is no sign of the car's owner.
It takes place in Sierra Leone, Africa (1993-1997)