Deforestation is a major threat to the ecosystem. Which of the following activities does not lead to deforestation?

Options

A. Using wood for making furniture
B. Constructing biosphere reserves
C. Clearing land for agriculture
D. Using wood as fuel

Answer

To determine which activity does not lead to deforestation, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Deforestation**:
- Deforestation refers to the clearing or removal of forests or trees, which can lead to significant environmental issues such as loss of biodiversity, disruption of water cycles, and increased carbon emissions.

2. **Analyzing the Options**:
- **Option 1: Using wood for making furniture**:
- This activity involves cutting down trees to obtain wood, which contributes to deforestation. Therefore, this option does lead to deforestation.

- **Option 2: Construction of biosphere reserve**:
- A biosphere reserve is an area designated for the conservation of biodiversity and sustainable use of natural resources. Constructing a biosphere reserve aims to protect ecosystems and prevent deforestation. Thus, this activity does not lead to deforestation.

- **Option 3: Clearing land for agriculture**:
- This activity often involves cutting down trees to make space for crops or livestock, which directly contributes to deforestation. Therefore, this option leads to deforestation.

- **Option 4: Using wood as fuel**:
- Similar to making furniture, using wood as fuel requires cutting down trees to obtain the wood. This also contributes to deforestation. Hence, this option leads to deforestation as well.

3. **Conclusion**:
- After analyzing all the options, it is clear that the only activity that does not lead to deforestation is the **construction of biosphere reserves**.

### Final Answer:
The activity that does not lead to deforestation is **construction of biosphere reserve**.

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