What is the effect of release of `CO_(2)` gas on atmosphere?

Options

A. Global warming
B. Photochemical smog
C. Ozone layer depletion
D. Tsunami

Answer

### Step-by-Step Solution

1. **Understanding the Question**: The question asks about the effects of carbon dioxide (CO₂) gas on the atmosphere. We need to analyze the options provided to determine which one is the correct effect.

2. **Analyzing the Options**:
- **Option A: Global Warming**: This refers to the increase in Earth's average surface temperature due to rising levels of greenhouse gases, including CO₂. CO₂ traps heat in the atmosphere, preventing it from escaping back into space. This is a well-established effect of CO₂.

- **Option B: Photochemical Smog**: Photochemical smog is a type of air pollution that results from the interaction of sunlight with pollutants such as nitrogen oxides and volatile organic compounds, primarily from vehicle emissions. While CO₂ is a pollutant, it is not the primary cause of photochemical smog. Therefore, this option is incorrect.

- **Option C: Ozone Layer Depletion**: The depletion of the ozone layer is primarily caused by chlorofluorocarbons (CFCs) and other ozone-depleting substances. CO₂ does not significantly contribute to ozone layer depletion, making this option incorrect.

- **Option D: Tsunami**: Tsunamis are caused by underwater earthquakes or volcanic eruptions, not by the release of CO₂. Thus, this option is also incorrect.

3. **Conclusion**: After analyzing all options, the only correct effect of the release of CO₂ gas on the atmosphere is **Global Warming**.

### Final Answer
The effect of the release of CO₂ gas on the atmosphere is **Global Warming**.

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