Earth's Layers

Gecko published on


exert = to put forth effort to do something burrow = to dig into solidify = to become hard Igneous, sedimentary, and metamorphic are the three main rock types, distinguished by their formation: igneous rocks form from cooled magma/lava, sedimentary from compacted(=pressed together) fragments (sediments) or organic matter, and metamorphic from existing rocks transformed by heat and pressure.
EFL subset that concentrates more on language in context than on grammar and language structures. It covers topics from accounting or computer science to tourism and business management. "Specific" means the studying through a field that is already known and relevant to a student.