The primary function of sweat is

Options

A. To facilitate a cooling effect on body surface
B. Removal of waste products
C. Both (a) and (b)
D. None of above

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the primary function of sweat.

2. **Understand Sweat Production**: Sweat is produced by sweat glands located in the skin. These glands secrete sweat onto the surface of the skin.

3. **Recognize the Composition of Sweat**: Sweat primarily consists of water, but it also contains salts (like sodium) and waste products (such as urea).

4. **Determine the Primary Function**: The main function of sweat is to regulate body temperature. When sweat evaporates from the skin surface, it cools the body down, which is crucial for maintaining a stable internal temperature.

5. **Consider Additional Functions**: While sweat does help in the removal of waste products, this is not its primary function. The primary role is to facilitate a cooling effect on the body surface.

6. **Select the Correct Answer**: Based on the analysis, the correct answer is that the primary function of sweat is to facilitate a cooling effect on the body surface.

**Final Answer**: The primary function of sweat is to facilitate a cooling effect on the body surface.

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