Excessive release of `CO_(2)` into the atmosphere results in :

Options

A. depletion of ozone
B. polar vortex
C. global warming
D. formation of smog.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the consequences of excessive carbon dioxide (CO₂) release into the atmosphere.

2. **Identifying the Options**: The options given are:
- Depletion of ozone
- Polar vortex
- Global warming
- Formation of smoke

3. **Analyzing Each Option**:
- **Depletion of Ozone**: This is primarily caused by chlorofluorocarbons (CFCs) and not directly by CO₂. Therefore, this option is not correct.
- **Polar Vortex**: This phenomenon relates to changes in temperature and pressure in the polar regions and is not directly linked to CO₂ emissions. Thus, this option is also incorrect.
- **Global Warming**: CO₂ is a greenhouse gas that traps heat in the atmosphere. Excessive CO₂ leads to an increase in the greenhouse effect, which results in global warming. This is a correct consequence of excessive CO₂ emissions.
- **Formation of Smoke**: Smoke is generally formed from the combustion of fossil fuels and is related to particulate matter and other pollutants, not specifically CO₂. This option is not correct either.

4. **Conclusion**: The most accurate answer to the question is that excessive release of CO₂ into the atmosphere results in **global warming**.

**Final Answer**: Excessive release of CO₂ into the atmosphere results in global warming.

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