As you climb up the Himalayas, the biodiversity

Options

A. increases
B. decreases
C. does not change
D. is randomized

Answer

### Step-by-Step Solution:

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

2. **Geographical Context**: The Himalayas are a mountain range that spans several countries in Asia, including India, Nepal, and Bhutan. The biodiversity in this region varies significantly with altitude.

3. **Altitude and Climate**: As you ascend the Himalayas, the altitude increases, which leads to changes in climate. Higher altitudes typically experience lower temperatures and more extreme weather conditions.

4. **Impact on Vegetation**: At lower altitudes, the climate is more favorable for a wide variety of plant and animal life, resulting in rich biodiversity. However, as you climb higher, the harsher climatic conditions limit the types of vegetation that can survive.

5. **Conclusion on Biodiversity**: Due to the extreme temperatures and reduced vegetation at higher altitudes, the overall biodiversity decreases as one climbs up the Himalayas.

6. **Final Answer**: Therefore, the correct answer is that as you climb up the Himalayas, the biodiversity decreases.