학문적 IELTS (밴드 5 이하) - 지질학

a solid material forming part of the earth's surface, often made of one or more minerals

록

a solid, naturally occurring substance with a specific chemical composition, typically found in the earth's crust, such as gold, copper, etc.

광물

the central part of Earth, or any other planet

핵심

the black or brownish substance consisted of organic remains, rock particles, and clay that forms the upper layer of earth where trees or other plants grow

흙

(geology) a horizontal bed or distinct sedimentary rock formation

층

a complete change in the form and structure of a rock as a result of heat and pressure

변성작용(지질학)

the remains or impression of a plant or animal that lived a long time ago and has been preserved in rock or sediment

화석

a source of hot water that natrurally flows out of the ground

온천

a rock that contains valuable mineral or metal

광석

a grey powder that is produced as a result of a substance getting burned

금연 건강 증진 협회

liquid or semi-liquid rock that exists under the earth's surface with an extremely hot temperature

연한 덩어리

the solid surface of the planet distinguished from air or sea

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