These question consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following five responses.
Assertion: Gravity plays very important role in the process of natural convection.
Reason: Convection mainly takes place in liquids and gases.

Options

A. If both Assertion and Reason are correct and Reason is also a good absorber of radiation at a given wavelength.
B. If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
C. If Assertion is true but Reason is false
D. If Assertion is false but Reason is true.

Explanation

To solve the assertion and reason question, we will analyze both statements and determine their validity and relationship.

### Step 1: Analyze the Assertion
**Assertion:** Gravity plays a very important role in the process of natural convection.

- **Explanation:** Natural convection occurs when fluid motion is caused by buoyancy differences due to temperature variations. When a fluid is heated, it becomes less dense and rises, while cooler, denser fluid sinks. This process is heavily influenced by gravity, as it is the force that causes the denser fluid to sink and the less dense fluid to rise.

**Conclusion:** The assertion is true.

### Step 2: Analyze the Reason
**Reason:** Convection mainly takes place in liquids and gases.

- **Explanation:** Convection is indeed a mode of heat transfer that occurs in fluids, which include both liquids and gases. In solids, heat transfer occurs mainly through conduction, as the particles do not move freely. Therefore, this statement is also true.

**Conclusion:** The reason is true.

### Step 3: Determine the Relationship Between Assertion and Reason
- The assertion states that gravity is crucial for natural convection, while the reason states that convection occurs in liquids and gases. Although both statements are true, the reason does not explain why gravity is important in natural convection.

### Final Conclusion
Both the assertion and reason are true, but the reason is not the correct explanation for the assertion. Therefore, the correct response is:
- **Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.**

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