Which of the following is not result of loss of biodiversity?

Options

A. Decrease in plant production
B. increase in resistance against drought
C. Variability in disease or pest cycle increases
D. Variability in water use increases

Answer

To determine which option is not a result of loss of biodiversity, we can analyze each option step by step:

1. **Understanding Loss of Biodiversity**:
- Loss of biodiversity refers to the decline in the variety of life forms within a given ecosystem, which can include reductions in species, genetic diversity, and ecosystem diversity. This loss can lead to various ecological consequences.

2. **Analyzing Each Option**:
- **Option A: Decrease in Plant Production**:
- A decrease in plant production is a direct consequence of loss of biodiversity. When biodiversity decreases, the ecosystem's ability to produce food and support plant life diminishes. This option is a result of loss of biodiversity.

- **Option B: Increase in Resistance Against Drought**:
- An increase in resistance against drought is not a typical result of loss of biodiversity. In fact, a diverse ecosystem is often more resilient and better able to withstand environmental stresses like drought. Therefore, this option does not correlate with loss of biodiversity.

- **Option C: Variability in Disease or Pest Cycle Increases**:
- Increased variability in disease and pest cycles can occur due to loss of biodiversity. A less diverse ecosystem may lead to more outbreaks of diseases and pests, as there are fewer natural checks and balances. This option is a result of loss of biodiversity.

- **Option D: Variability in Water Use Increases**:
- Increased variability in water use can also be a consequence of loss of biodiversity. Changes in plant and animal populations can affect how water is utilized in an ecosystem, leading to variability. This option is a result of loss of biodiversity.

3. **Conclusion**:
- After analyzing all options, it is clear that the only option that does not represent a result of loss of biodiversity is **Option B: Increase in Resistance Against Drought**.

Thus, the answer to the question is **B**.

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