Assertion: Higher concentration of `CO_(2)` in atmosphere is causing global warming.
Reason: Excessive `CO_(2)` depletes ozone layer.

Options

A. Assertion and reason both are correct statements and reason is correct explanation for assertion.
B. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C. Assertion is correct statement but reason wrong statement.
D. Assertion is wrong statement but reason is correct statement.

Answer

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

### Step 1: Analyze the Assertion
- **Assertion**: Higher concentration of CO₂ in the atmosphere is causing global warming.
- **Explanation**: Carbon dioxide (CO₂) is a greenhouse gas that traps heat in the atmosphere. Increased levels of CO₂ enhance the greenhouse effect, leading to an increase in global temperatures, which is referred to as global warming.

### Step 2: Analyze the Reason
- **Reason**: Excessive CO₂ depletes the ozone layer.
- **Explanation**: The depletion of the ozone layer is primarily caused by chlorofluorocarbons (CFCs) and other ozone-depleting substances, not by CO₂. Therefore, this statement is incorrect.

### Step 3: Conclusion
- Since the assertion is correct (CO₂ does contribute to global warming), but the reason is incorrect (CO₂ does not deplete the ozone layer), we conclude that:
- The assertion is true.
- The reason is false.

### Final Answer
- Based on the analysis, the correct option is **C**: Assertion is correct, but the reason is incorrect.

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