Rate of photosynthesis is maximum at

Options

A. Tropic of Capricorn
B. Tropic of Cancer
C. Poles
D. Equator

Answer

**Step-by-Step Solution:**

1. **Understanding Photosynthesis**: Photosynthesis is the process by which plants convert light energy into chemical energy, producing their own food. This process is crucial for plant growth and development.

2. **Factors Affecting Photosynthesis**: The rate of photosynthesis is influenced by several factors, including light intensity, carbon dioxide concentration, temperature, and water availability. Among these, light intensity is a key factor.

3. **Geographical Influence on Light Intensity**: The intensity of sunlight varies with geographical location. The equator receives the most direct sunlight throughout the year, leading to higher light intensity.

4. **Comparison of Locations**:
- **Tropic of Capricorn** and **Tropic of Cancer**: These are located at 23.5° north and south of the equator. While they receive significant sunlight, it is not as intense as that at the equator.
- **Poles**: The poles receive very low light intensity, especially during winter months, which significantly reduces the rate of photosynthesis.

5. **Conclusion**: Since the equator receives the maximum intensity of sunlight, the rate of photosynthesis is highest in this region. Therefore, the correct answer to the question is that the rate of photosynthesis is maximum at the equator.

**Final Answer**: The rate of photosynthesis is maximum at the equator.

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