Assertion: Tsunami may cause severe earthquake.
Reason: Earthquake may cause severe tsunami.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer

To solve the question regarding the assertion and reason about tsunamis and earthquakes, we will analyze both statements step by step.

### Step 1: Analyze the Assertion
**Assertion:** "Tsunami may cause severe earthquake."
- This statement suggests that tsunamis can lead to earthquakes. However, this is incorrect. Tsunamis are typically caused by underwater earthquakes, volcanic eruptions, or landslides. They do not cause earthquakes.

**Conclusion for Step 1:** The assertion is **false**.

### Step 2: Analyze the Reason
**Reason:** "Earthquake may cause severe tsunami."
- This statement indicates that earthquakes can lead to the formation of tsunamis. This is true because when an earthquake occurs under the ocean, it can displace a large volume of water, resulting in a tsunami.

**Conclusion for Step 2:** The reason is **true**.

### Step 3: Combine the Findings
- Since the assertion is false and the reason is true, we can conclude that the relationship between the two statements does not hold. The assertion does not correctly explain the reason.

### Final Conclusion
- The assertion is **false**, and the reason is **true**. Therefore, the answer is that the assertion is incorrect while the reason is correct.

---