Which is correct for threatened (T) species ?

Options

A. It is an endangered species like Rhino, Asiatic Lion, which is in danger of ex-tinction in immediate future
B. It is rare species like wild Asiatic Ass with small population in certain geo-graphical area
C. It is a vulnerable species like Musk deer, black buck which is likely to move into endangered category in near future
D. It is a species to be conserved to avoid its becoming rare, endangered or vulnerable species

Answer

### Step-by-Step Solution:

1. **Understanding Threatened Species**:
- Threatened species are those that are at risk of becoming endangered in the near future. They are categorized based on their population status and the threats they face.

2. **Categories of Threatened Species**:
- The International Union for Conservation of Nature (IUCN) classifies species into several categories. The relevant categories for threatened species include:
- Vulnerable: Species that are at risk of becoming endangered.
- Endangered: Species that are facing a very high risk of extinction in the wild.
- Critically Endangered: Species that are facing an extremely high risk of extinction in the wild.

3. **Human Impact**:
- Many species become threatened due to human activities such as habitat destruction, pollution, overfishing, and climate change. These activities lead to a decline in population and biodiversity.

4. **Red Data Book**:
- The IUCN publishes the Red Data Book, which provides information on the conservation status of various species. It helps in understanding which species are threatened and the level of threat they face.

5. **Identifying the Correct Option**:
- Given the options, the correct statement regarding threatened species is that they are species that need to be conserved to prevent them from becoming rare, endangered, or critically endangered. This aligns with the definition of threatened species.

6. **Conclusion**:
- Therefore, the correct answer to the question "Which is correct for threatened (T) species?" is that they are species that must be conserved to avoid becoming rare, endangered, or critically endangered.

### Final Answer:
- The correct option is: **It is a species to be conserved to avoid becoming rare, endangered, or critically endangered.**

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