The document discusses the different types of rocks that make up the Maltese Islands. There are three main categories: igneous rocks that solidified from molten magma, sedimentary rocks that are formed from compressed sediment, and metamorphic rocks that were formerly igneous or sedimentary rocks but were altered by heat and pressure. Specifically, the Maltese Islands are composed of marine sedimentary rocks formed on the seafloor from deposits of sediment, silt, and tiny sea creatures over millions of years. Weathering breaks down and alters rocks at Earth's surface through physical, chemical, and biological processes.
