Assertion: Reproduction and death are the two essential processes on the earth.
Reason: These maintain continuity of the race on the earth.

Options

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

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Reproduction and death are the two essential processes on the earth."
- Reproduction is indeed essential for the continuation of species, as it allows organisms to produce offspring and ensure the survival of their genetic material.

2. **Understanding the Reason**:
- The reason states that "These maintain continuity of the race on the earth."
- While reproduction does maintain continuity of the race, death does not directly contribute to this continuity. Instead, death is a natural process that helps regulate population size and maintain ecological balance.

3. **Evaluating the Truth of Each Statement**:
- The assertion is true because both reproduction and death are essential processes in the biological and ecological context.
- The reason is only partially true; it accurately describes reproduction but does not apply to death in the same way. Death does not maintain continuity of the race; rather, it is a necessary process for ecological balance.

4. **Conclusion**:
- Since the assertion is true and the reason is false, we conclude that the correct answer is that the assertion is true, but the reason is false.

### Final Answer:
The answer to the question is option C: The assertion is true, but the reason is false.