Excessive sun exposure is a common cause of brown spots on the scalp due to conditions such as melasma and actinic keratosis, per the Mayo Clinic and the American Academy of Dermatology. While these conditions differ slightly from each other, they both are frequently caused by excessive ultraviolet radiation. Continue Reading.
Mexico is a part of North America. Maybe you are thinking of Northern America, which is a tricky area as sometimes Mexico is included and sometimes it is not. Northern America â¦ is the northern portion of North America, in which Canada and the United States are usually the two sole members.
The incredible variety that exists in Mexico's culture is mirrored by its geography! Mexico is located in the northern region of the American continent between the Gulf of Mexico on the east and the Pacific Ocean on the west.It is bordered by the United States on the north and by Guatemala and Belize on the south. Mexicoâs land area extends 1,964,375 sq km, which is divided into six tourist regions.Mexico, with its variety of geographical regions and climate variations, has something for just about anyone.exicoâs land area extends 1,964,375 sq km, which is divided into six tourist regions. Mexico, with its variety of geographical regions and climate variations, has something for just about anyone.