4 ms·
ABC’s, Airway, Breathing, Circulation. Having said that, it’s clear in context that survival needs referred to external factors such as food, water, shelter, an
by DmenshunlAnlsis 8y ago
ABC’s, Airway, Breathing, Circulation. Having said that, it’s clear in context that survival needs referred to external factors such as food, water, shelter, and fire.
- nixpulvis 8y agoOxygen is external, we just generally don't need to worry about it.