글의 흐름으로 보아 아래 문장이 들어가기에 가장 적절한 곳은?Water… | [법원직 9급 영어] 20년 1회차 기출문제 상세 페이지

글의 흐름으로 보아 아래 문장이 들어가기에 가장 적절한 곳은?
Water is also the medium for most chemical reactions needed to sustain life.

Several common properties of seawater are crucial to the survival and well-being of the ocean’s inhabitants. Water accounts for 80-90% of the volume of most marine organisms. ( ① ) It provides buoyancy and body support for swimming and floating organisms and reduces the need for heavy skeletal structures. ( ② ) The life processes of marine organisms in turn alter many fundamental physical and chemical properties of seawater, including its transparency and chemical makeup, making organisms an integral part of the total marine environment. ( ③ ) Understanding the interactions between organisms and their marine environment requires a brief examination of some of the more important physical and chemical attributes of seawater. ( ④ ) The characteristics of pure water and sea water differ in some respects, so we consider first the basic properties of pure water and then examine how those properties differ in seawater.

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