Which of the following comparisons is correct?

Options

A. Number of recorded animals `lt` number of recorded plants
B. Number of national parks in India `lt` Number of biodiversity hotspots in the world
C. Number of varieties of mango in India `gt` number of varieties of rice in India
D. The percentage of mammals facing the threat of extinction `lt` the percentage of amphibians facing the threat of extinction

Answer

To solve the question regarding the correct comparison among the given options, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Comparison of Recorded Animals vs. Recorded Plants**:
- The statement claims that the number of recorded animals is less than the number of recorded plants.
- According to the information provided, 70% of animals are recorded, while only 22% of plants are recorded.
- Since 70% is greater than 22%, this comparison is **incorrect**.

2. **Comparison of National Parks in India vs. Biodiversity Hotspots in the World**:
- The statement compares the number of national parks in India (101) to the number of biodiversity hotspots in the world (36).
- Since 101 is greater than 36, this comparison is also **incorrect**.

3. **Comparison of Varieties of Mangoes vs. Varieties of Rice**:
- The statement claims that the number of varieties of mangoes is greater than the varieties of rice.
- It is noted that there are about 1500 varieties of mangoes and 6000 varieties of rice.
- Since 1500 is less than 6000, this comparison is **incorrect**.

4. **Comparison of Percentage of Mammals Facing Threat of Extinction vs. Amphibians**:
- The statement discusses the percentage of mammals facing extinction (25%) compared to amphibians (40%).
- It is stated that 25% of mammals are facing extinction, while 40% of amphibians are facing a similar threat.
- Since 40% is greater than 25%, this comparison is **correct**.

### Conclusion:
The correct comparison is that the percentage of amphibians facing extinction (40%) is greater than that of mammals (25%). Therefore, the fourth option is the correct answer.