Number of known insect species is

Options

A. 2,70,000
B. 53239
C. 1025000
D. 72000

Explanation

To determine the number of known insect species, we can follow these steps:

1. **Identify the Source of Information**: The information regarding the number of known insect species is maintained by the International Union for Conservation of Nature (IUCN). This organization keeps track of various species and their conservation status.

2. **Review the Options Provided**: The options given for the number of known insect species are:
- 27,000
- 490
- 53,239
- 1,025,000
- 720,000

3. **Refer to the Data from IUCN**: According to the IUCN data available from 2004, the number of known insect species is reported to be 1,025,000.

4. **Select the Correct Answer**: Based on the information from the IUCN, the correct answer to the question regarding the number of known insect species is 1,025,000.

5. **Conclude the Solution**: Therefore, the number of known insect species is 1,025,000.