Dehydration can be very serious and if left untreated can be fatal, common symptoms of dehydration are headaches, feeling nauseous and dizziness. so in short your statement is true.
I would not recommend this. If you are trying to lose weight simply better your diet by intaking fewer calories per day and burning more than you consume. Always consult your Primary Care Physician prior to taking medications if you take other medications, or a parent if you do not.
Asphyxiation because it is a condition caused by lack of oxygen, which causes one to choke.
I would say D. beginning, early proficient and advanced competence as it is to do with throwing so is a physical skill so can be described in these ways according to the level of proficiency or competence exhibited by the sports person.
Congenital insensitivity (CIP)