The answer is 4,
I once heard my pe teacher say that the answer is always all of above in health
Answer:
i believe no because i have no clue what a spacer is
Explanation:
OK so if you mean that it will not pollute the air then yes this is true.
Answer:
Bloody yellow mucus may be a sign that the nasal passageway is irritated and could be a result of congestion, dryness or inflammation in the area caused by a possible infection. Hope this helps!
False, It's the fluid/gel in between the lens and retina of the eye