Which is the correct about biodiversity :-

Options

A. Insects are the most species rich taxonomic group, making up more than 7% of the total.
B. India has only 2.4 percent of the world's land area, its share of the global species diversity is an impressive 8.1 percent.
C. Nearly 45,00 species of plants & twice as many of animals have been recorded from india
D. India has more than 1200 species of Bird.

Answer

To determine which statements about biodiversity are correct, we can analyze the provided statements step by step.

### Step-by-Step Solution:

1. **Analyze the First Statement:**
- The statement claims that insects make up more than 7% of the total species.
- This is incorrect because insects actually comprise about 70% of all described species on Earth. Therefore, this statement is false.

2. **Analyze the Second Statement:**
- The statement mentions that India has 2.4% of the world's land area and shares 8.1% of global species diversity.
- This is true. India is indeed one of the 12 mega-diverse countries due to its significant biodiversity relative to its land area.

3. **Analyze the Third Statement:**
- This statement claims that nearly 45,000 species of plants and twice as many animals (90,000) have been recorded from India.
- This is also true. India is known for its rich biodiversity, including a vast number of plant and animal species.

4. **Conclusion:**
- From the analysis, we find that the first statement is incorrect, while the second and third statements are correct. Thus, the correct statements about biodiversity are the second and third ones.

### Final Answer:
- The correct statements about biodiversity are:
1. India has 2.4% of the world's land area and shares a global species diversity of 8.1%.
2. Nearly 45,000 species of plants and 90,000 species of animals have been recorded from India.