Identify what is asked in the given statement.
1. It refers to the variety of life in an area
2. End of species’ existence
3. A region with a significant amount of biodiversity
4. The excessive use of species that have economic value
5. Lack of oxygen
6. Preventing the extinction of organisms
7. Change in the composition of air, soil, and water
8. Dichloro-diphenyl-trichloroethane
9. Assess the conservation status and collection of species
10. Last Criteria for extinction
11. The increase in concentration of toxic Substances in the first trophic level
12. Abnormal algal growth in bodies of water
13. Introduction of new species
14. Removing pollutants from contaminated area
15. Extinct in the wild

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