Answer:
4
Explanation:
Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Carbon can form single, double, or triple covalent bonds with other carbon atoms.
It's known as severity.
The fact that her pain is on the scale between 1-10 refers to the severity of her pain.
Hope that helped ^U^
