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 evaluate each of the four statements provided and determine which ones are correct.

### Step-by-Step Solution:

1. **Evaluate Statement A**:
- "6th mass extinction species is being caused anthropogenically and is 10 times faster than the rate of natural extinctions."
- This statement is **incorrect**. The current rate of extinction due to human activities is estimated to be 100 to 1000 times faster than the natural extinction rate, not just 10 times.

2. **Evaluate Statement B**:
- "Passenger pigeons have become extinct due to over-exploitation of humans."
- This statement is **correct**. Passenger pigeons were indeed driven to extinction primarily due to excessive hunting and habitat destruction by humans.

3. **Evaluate Statement C**:
- "Norway has lower ecosystem diversity than India."
- This statement is **correct**. India, being in a tropical zone, has a much higher biodiversity compared to Norway, which is in a frigid zone.

4. **Evaluate Statement D**:
- "More than 50,000 varieties of mango occur in India."
- This statement is **incorrect**. India has around 1,000 recognized varieties of mango, not 50,000.

### Conclusion:
Based on the evaluations:
- Statement A: Incorrect
- Statement B: Correct
- Statement C: Correct
- Statement D: Incorrect

The correct set of statements includes only B and C. Therefore, the answer is that the option with the correct statements is **B and C**.