I think it's B. Because if you're wearing something that filters oxygen (E.g. gas mask) and the substance becomes airborne, the filters in the protective gear might be overworked if the substance density is greater than the filtering capacity.
Zayden is illegally using the drug B. Narcotics.
You should refuse his offer and call either a friend you trust or a family member to pick you up. from the smell of alcohol form his breath, there could be a chance of him being intoxicated. drunk driving can cause crashes and deaths.
What are the answer choices?
The loss of fluid that isn't perceived by sense is called insensible losses (however the term for loss of fluid from the body is called dehydration but this one is noticeable)
