Curated OER
Sedimentary Rock
This site provides a broad overview of the three different types of rocks. Gives a description about are how they are formed and classified.
Curated OER
Unesco: Palau: Rock Islands Southern Lagoon
Rock Islands Southern Lagoon covers 100,200 ha and includes 445 uninhabited limestone islands of volcanic origin. Many of them display unique mushroom-like shapes in turquoise lagoons surrounded by coral reefs. The aesthetic beauty of...