THE CHEMISTRY OF SUNSCREEN. Sunscreen: (snskrn) n. Chemical or physical agents that protect the skin from sunburn and erythema by absorbing or blocking ultraviolet radiation. A preparation, often in the form of a cream or lotion, used to protect the skin from the ultraviolet rays of the sun.
The Llano County Courthouse in Llano. Llano County /ËlÃ¦noÊ/ is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2010 census, its population was 19,301. Its county seat is Llano, and the county is named for the Llano River. In 1869, pioneer rancher John Wesley Snyder led a cattle drive from Llano County along the Chisholm Trail to Abilene, Kansas.
Del Valle, Texas. Del Valle (/ËdÉl ËvÃ¦li/ del VAL-ee) is a suburb of Austin and part of the AustinâRound RockâSan Marcos Metropolitan Statistical Area. It is an unincorporated area in southeastern Travis County, Texas, United States. It has no local government of its own and no official boundaries.