IUCN stands for :

Options

A. Indian Union of Chemical Nomenclature
B. International Union for Conservation of Nature
C. International Union for Conservation of Natural and Natural Resources
D. International Union for Conservation of Nutrients

Answer

**Step-by-Step Solution:**

1. **Identify the Acronym**: The question asks what IUCN stands for. The acronym IUCN is commonly used in discussions about biodiversity and conservation.

2. **Analyze the Options**: The options provided are:
- A) Indian Union of Chemical Nomenclature
- B) International Union for Conservation of Nature
- C) International Union for Conservation of Natural and Natural Resources
- D) International Union for Conservation of Nutrients

3. **Recall the Purpose of IUCN**: From the video transcript, we learn that IUCN is an organization established in 1948 with the purpose of protecting threatened species and conserving nature.

4. **Match the Purpose with the Options**: The correct option should reflect the mission of protecting nature and conserving biodiversity. The option that aligns with this mission is:
- B) International Union for Conservation of Nature.

5. **Conclusion**: Therefore, the correct answer to what IUCN stands for is **International Union for Conservation of Nature**.

---