(A) Sodium and Potassium (X)
(B) Sodium and Calcium (X)
(C) Sodium and Chlorine (✔)
(D) Chlorine and Iodine (X)
(E) Magnesium and Sulphur (X)
Answer: The two most abundant elements in sea water are Sodium and Chlorine.
(A) Sodium and Potassium (X)
(B) Sodium and Calcium (X)
(C) Sodium and Chlorine (✔)
(D) Chlorine and Iodine (X)
(E) Magnesium and Sulphur (X)
Answer: The two most abundant elements in sea water are Sodium and Chlorine.
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