Sweat serves to eliminate mainly _______and _________.

Answer

**Step-by-Step Solution:**

1. **Understanding Sweat Production**: Sweat is produced by sweat glands, which are small tubular glands located within and under the skin.

2. **Composition of Sweat**: The primary component of sweat is water. However, sweat also contains various minerals and waste products.

3. **Identifying Key Components**: The minerals found in sweat include sodium chloride (salt), lactate, and urea. These components are important for the elimination of certain substances from the body.

4. **Main Functions of Sweat**: The main purpose of sweating is to regulate body temperature, but it also serves to eliminate waste products and toxicants from the body.

5. **Final Answer**: Therefore, the two main substances that sweat serves to eliminate are **water** and **salts (sodium chloride)**.

**Final Answer**: Sweat serves to eliminate mainly **water** and **salts (sodium chloride)**.

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