Answer:
The correct answer is statement 3.
Explanation:
Nose hair is also known as nasal hair are the hairs present within the nose. The prime function of the nasal hair is to prevent the harmful foreign particles like bacteria, fungus, or other harmful substances from getting within the nasal cavity. It also prevents noxious gases present in the surroundings from entering the nasal cavity.
The nasal hairs function as a filter and trap dust, spores, bacteria, viruses, and spores on its sticky surface, this further inhibits them from going into the lungs that can eventually result in infection.
