Comedones may be closed or open. A closed comedo has an obstructed opening to the skin and may rupture to cause a low-grade skin inflammatory reaction in the area. The common name for a closed comedo is a whitehead. An open comedo has a wide opening to the skin and is capped with a blackened mass of skin debris. It is commonly known as a blackhead. Acne occurs when sebaceous glands of the skin begin to secrete oil during puberty.
Guam is an island in the western Pacific Ocean. It is a U.S territory officially known as the Territory of Guam. The official languages are Chamorro and English (influenced by U.S).
3) Tagalog. This language from the Philippines boasts 1,594,413 speakers in the US â slightly more than tripling its numbers in the last three decades, and recently surpassing French and Vietnamese on this list. Speakers of Tagalog are concentrated mainly in Los Angeles, San Francisco, New York and San Diego.