Solok Selatan is one of the areas in West Sumatra that has geothermal potential. contains much higher levels of radioactive substances in the soil in the form of Radium (Ra-226). Thorium (Th-232). and Potassium (K-40). https://www.ealisboa.com/mega-sale-Sol-Sunguard-Altitude-Sunscreen-1-5oz-big-savings/