As we move from the poles of equator, the biological diversity

Options

A. increases
B. decreases
C. first increases then decreases
D. first increases then again increases

Answer

### Step-by-Step Text Solution:

1. **Understanding the Concept of Biological Diversity**: Biological diversity, or biodiversity, refers to the variety of life forms in a particular habitat or ecosystem. It includes the diversity of species, genetic diversity, and ecosystem diversity.

2. **Geographical Context**: The Earth is divided into different climatic zones, with the equator being the central line that separates the Northern and Southern Hemispheres. The poles are located at the extreme ends of the Earth.

3. **Conditions at the Poles**: The poles (Arctic and Antarctic regions) are characterized by extremely cold temperatures and harsh environmental conditions. These areas are often covered in ice and receive very little sunlight throughout the year. Such conditions are not conducive to supporting a wide variety of life forms.

4. **Conditions at the Equator**: In contrast, the equator has a warm climate with abundant sunlight and rainfall. These favorable conditions allow for a rich variety of flora (plants) and fauna (animals) to thrive. The equatorial regions are known for their lush rainforests and diverse ecosystems.

5. **Trend of Biodiversity**: As one moves from the poles towards the equator, the environmental conditions become increasingly favorable for life. This transition leads to an increase in biological diversity. In other words, biodiversity tends to increase as we approach the equator due to the more suitable climate for various species.

6. **Conclusion**: Therefore, the correct answer to the question is that as we move from the poles to the equator, biological diversity increases.