Maximum species diversity is seen in latitudinal range of :

Options

A. `23.5^(@)` N to`66.5^(@) N`
B. `23.5^(@)` N to `23.5^(@)` S
C. `23.5^(@)` S to `66.5^(@)` N
D. `66.5^(@)` N to `90^(@)` N

Answer

To determine the latitudinal range where maximum species diversity is observed, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Latitudinal Diversity**: Recognize that species diversity tends to be highest near the equator and decreases as you move towards the poles. This is known as the latitudinal diversity gradient.

2. **Evaluating the Options**: Look at the provided latitudinal ranges:
- 23.5° N to 66.5° N
- 23.5° N to 23.5° S
- 23.5° S to 66.5° N
- 66.5° N to 90° N

3. **Identifying the Equatorial Range**: The latitudinal range that includes the equator (0° latitude) is crucial since maximum species diversity is found in tropical regions near the equator.

4. **Selecting the Correct Range**: Among the options, the range that includes the equator is:
- **23.5° N to 23.5° S**. This range covers the tropical zone where species diversity is at its peak due to favorable conditions such as high rainfall and humidity.

5. **Conclusion**: Therefore, the latitudinal range with maximum species diversity is **23.5° N to 23.5° S**.

### Final Answer:
Maximum species diversity is seen in the latitudinal range of **23.5° N to 23.5° S**.

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