•boiling and freezing point
•surface tension
•vapor pressure
• solid state
•liquid state
•gaseous state
Well, something that I noticed is that the left side is equal to the right side meaning that the sum of the right side is equal to the sun of the left side.
The answer is b.volleyball
Grief.
To mourn is to feel great sadness or regret for something.
Grief, lament, weep, shed tears, deplore, bewail, bemoan, rue, and regret.