What shall be the effect of destruction of wildlife?

Options

A. Wild gene of disease resistance will not be obtained
B. Soil erosion
C. Floods
D. Greenhouse effect

Answer

### Step-by-Step Solution:

1. **Understanding Wildlife Destruction**: The destruction of wildlife refers to the loss of animal and plant species due to various factors such as habitat destruction, pollution, climate change, and overexploitation.

2. **Impact on Ecosystem**: The primary effect of wildlife destruction is the drastic impact on ecosystems. Wildlife plays a crucial role in maintaining the balance of ecosystems.

3. **Loss of Genetic Diversity**: One significant consequence of wildlife destruction is the loss of genetic diversity. Many species possess unique genes that contribute to disease resistance and other vital traits.

4. **Wild Gene Pool**: When wildlife is destroyed, the gene pool of that area is affected. This means that the specific genes that provide resistance to diseases may be lost forever. The absence of these genes can lead to increased vulnerability of other species, including humans, to diseases.

5. **Evaluating Other Options**: The other options provided (soil erosion, floods, greenhouse effect) are typically caused by different environmental issues like deforestation and pollution, rather than directly by the destruction of wildlife.

6. **Conclusion**: Therefore, the most direct effect of wildlife destruction is that wild genes of disease resistance will not be obtained, leading to a decrease in biodiversity and resilience within ecosystems.

### Final Answer:
The effect of destruction of wildlife is that wild genes of disease resistance will not be obtained.

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