4. 10. The term ‘ecology’ was coined



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4. A zone with constant temperature in atmosphere is called an ………. 5.

The ionosphere zone of atmosphere extends approximately from…………….. Km to km. 6. Temperature in………. layer can be as high as 12000°C. 7.

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……… teach us how to treat nature. 8. The world’s first Inter-governmental Conference on Environmental Education in 1977 was held in ………… 9. The United Nations Conference on Environment and Development (Earth Summit) was held at in …………… 10. The term ‘ecology’ was coined by………….. 11. The study of reciprocal relationship between organisms and their environment is called ………….

. 12. There is a continued and rapid exchange of O2, CO2 and H2O in………… ecosystem. 13. The ecological factors related to soil and substratum is called ………….. 14.

The floating aquatic plants are termed as……………. 15. Herbivores are ……………… consumers. 16.

Autotrophic planktons are called…………… 17. Dead plant parts and animal remains are called ……………… 18. Each step in a food chain represents a ………….

19. Every food chain starts with a……………. 20. The pyramid of…………… is always upright.

21. Stepped cut-hill slope ecosystem is an example of ………… biome. 22.

Urban areas produces little ………… consumes more……..and generate more……..

Per capita than rural areas. 23. Undernourishment means……….

.of sufficient calories in food. ANSWERS: 1. June 05; 2. Envrionner; 3. Mesosphere; 4. Isothermal layer; 5. 100, 400; 6.

thermosphere; 7. environmental studies; 8. Tbilisi, Georgia; 9.

Rio da Janerio; 10. Earnst Haeckel; 11. Ecology; 12.natural; 13. Edaphic factor; 14. Phytoplankton.

; 15. Primary; 16. Phytoplanktons; 17.

detritus; 18. tropic level; 19. Producer; 20. Energy; 21. Artificial; 22.

Food, natural resources, waste; 23. Lack.

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