Which of the following is a result of habitat destruction, poaching, climate change and lack of resource management

Options

A. Decline in biodiversity
B. Decline of selection pressure
C. Decline in natural resources
D. Increase of green-house effect.

Answer

**Step-by-Step Solution:**

1. **Identify the Factors:**
- The question mentions four factors: habitat destruction, poaching, climate change, and lack of resource management.

2. **Understand Habitat Destruction:**
- Habitat destruction occurs when natural habitats are altered or destroyed, often due to human activities such as deforestation, urbanization, and agriculture. This leads to the loss of species that depend on those habitats.

3. **Consider the Impact of Poaching:**
- Poaching refers to the illegal hunting of wildlife. It significantly reduces populations of certain species, which can lead to their extinction. This illegal activity disrupts ecosystems and contributes to biodiversity loss.

4. **Evaluate Climate Change:**
- Climate change affects ecosystems by altering temperature and weather patterns, which can lead to habitat loss and changes in species distributions. Many species may not adapt quickly enough to these changes, leading to declines in biodiversity.

5. **Assess Lack of Resource Management:**
- Poor resource management leads to overexploitation of natural resources, which can deplete populations of plants and animals. This unsustainable use of resources further threatens biodiversity.

6. **Analyze the Options:**
- The options provided are:
a) Decline in biodiversity
b) Decline of selection pressure
c) Decline in natural resources
d) Increase of the greenhouse effect
- Among these, the most direct consequence of the factors listed is the decline in biodiversity.

7. **Conclusion:**
- Therefore, the correct answer is **option a) decline in biodiversity**. This option encompasses the effects of habitat destruction, poaching, climate change, and poor resource management, all of which lead to a reduction in the variety of life on Earth.