Which plant has the maximum power of absorbing `CO_(2)` and oxides of nitrogen in a polluted area?

Options

A. Eucalyptus
B. Coleus indica
C. Robinia pseudoacacia
D. Daucus carota

Answer

To determine which plant has the maximum power of absorbing carbon dioxide (CO₂) and oxides of nitrogen in a polluted area, we can follow these steps:

### Step 1: Identify the Plants
We have four options to consider:
1. Eucalyptus
2. Coelacanth
3. Robinia pseudoacacia
4. Daucus carota

### Step 2: Analyze Each Plant's Characteristics
- **Eucalyptus**: Known for its fast growth and ability to thrive in various environments, but not specifically noted for high CO₂ absorption.
- **Coelacanth**: This is actually a fish, not a plant, so it can be disregarded.
- **Robinia pseudoacacia**: Commonly known as black locust, it is recognized for its fast growth and ability to absorb CO₂ and other pollutants effectively.
- **Daucus carota**: Commonly known as carrot, it is primarily cultivated for its roots and does not have significant pollutant absorption capabilities.

### Step 3: Determine the Best Absorber
Among the plants listed, **Robinia pseudoacacia** (black locust) stands out due to its:
- Fast growth rate
- Ability to produce dense and rot-resistant hardwood
- Greater biomass, which allows for more effective absorption of CO₂ and other pollutants.

### Step 4: Conclusion
Based on the analysis, the plant with the maximum power of absorbing CO₂ and oxides of nitrogen in a polluted area is **Robinia pseudoacacia**.

### Final Answer
The correct answer is **Robinia pseudoacacia**.

---