O air-filled cavities that secrete mucus to keep the nose moist and remove bacteria.
Twice as old as" means we will be multiplying by 2. "her cousin" - we need a new variable C to represent her cousin's age. "was three years ago" - 3 years ago means we will have to subtract 3.
Answer:
False (i think)
Explanation:
if you love someone you want to be with them forever no matter what
if you sexual attract someone they will want to be with you but if you chance they will hate you
hope this helps