An oxygen deficit occurs _____.
1 when you are breathing faster than you need to
2 during the middle of an exercise work out
3 when you stop cardiovascular exercise
4 when you start cardiovascular exercise.

Respuesta :

when you are breathing faster than you need to
An oxygen deficit happens when the amount of oxygen in your lungs becomes low and your body needs a much larger amount of it to process and perform proper cellular functions for you to survive and thrive. 

Answer:

An oxygen deficit occurs when you are breathing faster than you need to.