1. Epidermis
2biotin
3. Subcutaneous tissue
7 tympanic membrane
10. Ossicles
12 sinusitis
13 irrigation
14 ear plugs
Answer:
Silica improves collagen production: Studies have shown that silica can help to form the building blocks of collagen, a protein found in your skin, cartilage, blood, muscles and ligaments that helps to keep your skin elastic.
Explanation: