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.
[esËtaÃ°o Ã°e Ëmexiko]. ), officially the Free and Sovereign State of Mexico (Spanish: Estado Libre y Soberano de Mexico), mÃ©xico is one of the 31 states, which with The Federal, district comprise the 32 federal entities Of. mexico