CELL STRUCTURES AND FUNCTION
BIO MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carbon
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Hydrogen
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Sulfur
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Sodium
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Detailed explanation-1: -Sodium is the sixth most common element on Earth, and makes up 2.6% of the Earth’s crust. The most common compound is sodium chloride.
Detailed explanation-2: -Sodium is an essential element for life, as is potassium, and the two elements maintain a definite balance within the cell structure.
Detailed explanation-3: -Sodium is the sixth most abundant element in The Earth’s crust, which contains 2, 83% of sodium in all its forms. Sodium is, after chloride, the second most abundant element dissolved in seawater.
Detailed explanation-4: -Sodium is the sixth most abundant element on Earth. It is never found in its pure form because it is so reactive. It is only found in compounds such as sodium chloride (NaCL) or table salt. Sodium chloride is found in ocean water (salt water), salt lakes, and underground deposits.