Name the book maintained by IUCN to keep record of all endangered animals and plants.

Options

A. Red data book
B. Black data book
C. Yellow data book
D. Green data book

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks for the name of the book maintained by the International Union for Conservation of Nature (IUCN) that records all endangered animals and plants.

2. **Identify IUCN**: IUCN stands for the International Union for Conservation of Nature. It is an organization that works towards the conservation of nature and the sustainable use of natural resources.

3. **Recognize the Purpose of the Book**: The book in question is used to keep a record of species that are at risk of extinction. This includes both endangered animals and plants.

4. **Know the Name of the Book**: The specific book maintained by IUCN that lists endangered species is called the "Red Data Book."

5. **Categories in the Red Data Book**: The Red Data Book categorizes species based on their risk of extinction. It has several categories, including "Least Concern," "Vulnerable," "Endangered," and "Critically Endangered."

6. **Conclude the Answer**: Based on the information, the answer to the question is the "Red Data Book."

**Final Answer**: The book maintained by IUCN to keep record of all endangered animals and plants is called the **Red Data Book**.

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