Read the following statement A) 6th mass extinction species is being caused anthropogenically and is 10 time faster than the rate of natural extinctions. B) passenger pigeon have become extinct due to over Exploitations of humans. C) Norway has lower ecosystem diversity than India. D) more than 50000 varieties of mango occur in India. choose the option with correct sets of statement

Options

A. A and D
B. A and B
C. B and C
D. C and D

Answer

To solve the question, we need to analyze each of the four statements provided and determine which ones are correct.

### Step-by-Step Solution:

1. **Statement A**: "6th mass extinction species is being caused anthropogenically and is 10 times faster than the rate of natural extinctions."
- Analysis: The sixth mass extinction is indeed caused by human activities (anthropogenic factors). However, it is estimated to be 100 to 1,000 times faster than the natural extinction rate, not just 10 times. Therefore, this statement is **incorrect**.

2. **Statement B**: "Passenger pigeon have become extinct due to over exploitation of humans."
- Analysis: The passenger pigeon is a well-documented case of extinction due to overhunting and habitat destruction caused by human activities. This statement is **correct**.

3. **Statement C**: "Norway has lower ecosystem diversity than India."
- Analysis: India is known for its high biodiversity and is one of the 12 mega-diverse countries in the world, with various ecosystems such as tropical rainforests, deserts, and coral reefs. In contrast, Norway has less biodiversity due to its different climate and ecosystem types. Thus, this statement is **correct**.

4. **Statement D**: "More than 50,000 varieties of mango occur in India."
- Analysis: This statement is incorrect. India has approximately 1,000 varieties of mango, while the figure of 50,000 refers to the strains of rice found in India. Therefore, this statement is **incorrect**.

### Conclusion:
The correct statements are B and C. Therefore, the option with the correct set of statements is option 3 (B and C).