Question

__________ is a mineral that we sometimes get too much of and is used as a preservative

○ sodium
○ potassium
○ water
○ calcium

Explanation:

We analyze each option:

• Sodium: Often consumed in excess (e.g., in salt), and sodium compounds (like sodium benzoate) are used as preservatives.
• Potassium: Important for health but not primarily used as a preservative in the same way, and excess intake is less common in typical diets.
• Water: Not a mineral.
• Calcium: Essential for health, not used as a preservative, and excess is less common.

So Sodium fits the description.

Answer:

A. Sodium