Assertion `:-` The primary function of sweat is to facilitate a cooling effect on the body surface.
Reason `:-` Small amount of nitrogenous wastes could be eliminated through saliva.
(a) If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
(b) If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
(c) Assertion is True but the Reason is False.
(d) If both Assertion & Reason are false.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.

Answer

To solve the question, we need to evaluate the assertion and reason provided:

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

**Reason:** Small amounts of nitrogenous wastes could be eliminated through saliva.

### Step-by-Step Solution:

1. **Evaluate the Assertion:**
- The assertion states that the primary function of sweat is to facilitate a cooling effect on the body surface.
- This is true because sweat is primarily composed of water and salts, and when it evaporates from the skin surface, it cools the body down, helping to regulate body temperature.

2. **Evaluate the Reason:**
- The reason states that small amounts of nitrogenous wastes could be eliminated through saliva.
- This is also true, as saliva can contain small amounts of urea and other nitrogenous wastes, although this is not its primary function.

3. **Determine the Relationship:**
- Now we need to determine if the reason explains the assertion.
- The reason discusses saliva and nitrogenous waste, which is unrelated to the cooling effect of sweat. Therefore, while both statements are true, the reason does not provide a correct explanation for the assertion.

4. **Select the Correct Option:**
- Since both the assertion and reason are true, but the reason does not explain the assertion, the correct option is (b): If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

### Final Answer:
(b) If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

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