The percentage of all gymnosperm species facing extinction is

Options

A. 12
B. 23
C. 32
D. 31

Answer

To solve the question regarding the percentage of all gymnosperm species facing extinction, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the percentage of gymnosperm species that are currently facing extinction.

2. **Identify the Source of Information**: The International Union for Conservation of Nature (IUCN) provides a red list that categorizes species based on their conservation status, including those that are extinct or facing extinction.

3. **Review the Options Provided**: The options given are:
- A) 12%
- B) 23%
- C) 32%
- D) 31%

4. **Analyze the Data for Each Group**:
- **Birds**: 12% are facing extinction.
- **Mammals**: 23% are facing extinction.
- **Amphibians**: 32% are facing extinction.
- **Gymnosperms**: The percentage we need to find.

5. **Recall the Information**: According to the IUCN, it is stated that 31% of gymnosperm species are facing extinction.

6. **Select the Correct Option**: Based on the information provided, the correct answer is D) 31%.

### Final Answer:
The percentage of all gymnosperm species facing extinction is **31%**.

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