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ENTRANCE TEST – 2011 Multiple Questions and Answers.
| 12. | Which one of the following is depleting and causing thinning of ozone? | ||
| A. | Chlorine | ||
| B. | Bromine | ||
| C. | Chlorofluorocarbon | ||
| D. | Carbon | ||
| 13. | The typical environment of a particular organism population community is called | ||
| A. | Niche | ||
| B. | Ecosystem | ||
| C. | Habitat | ||
| D. | Biosphere | ||
| 14. | Excessive enrichment of water with nutrients by human activity by which large amount of living organic matter grows is called | ||
| A. | Archeotrophication | ||
| B. | Eutrophication | ||
| C. | Enrichment | ||
| D. | Low Trophication | ||
| 15. | In an ecosystem, mycorrhizae is an example of | ||
| A. | Symbiosis | ||
| B. | Predation | ||
| C. | Commensalism | ||
| D. | Parasitism | ||
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