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Which of the Following Is TRUE of the Chemical Composition

Question 135

Multiple Choice

Which of the following is TRUE of the chemical composition of seawater?


A) Samples of ancient seawater suggest a great deal of chemical variation over Earthʹs history.
B) Seawater is very heterogeneous,varying across the vast oceans of the world.
C) Seawater contains dissolved gases,suspended and dissolved organic matter,and many trace elements.
D) Eighteen elements account for 75% of the dissolved waters in seawater.

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