Environmental Science - Part 8 - TNPSC Portal

1. When was the term 'ecology' coined ? Answer

   1878

2. Who coined the word 'ecology' ? Answer

   Earnest Haeckel (biologist)

3. The term 'ecology' is derieved from which language ? Answer

   Greek words oikos and logos | 'oikos' means 'dwelling' and 'logos' means 'study'

4. Minamata Diesease' is caused by ? Answer

   Mercury Poison

5. Where Minamata is located ? Answer
   

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   Japan

6. What are 'macronuetrients' ? Answer

   Nitrogen, Oxygen, Hydrogen, Potassium, Calcium, Magnesium, Sulphur and Phosphorous

7. What are the 'micronutreints' ? Answer

   Iron, Manganese, Copper, Zinc, Boron, Molybdenum, Vanadium, Cobalt, Chlorine and Sodium.

8. Among the atmosphere layers where we live ? Answer

   Troposphere

9. How much degree celcius temperature decreases with 1 km height in Troposphere ? Answer
   

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   6 Degree Celcius per Km

10. When was the Wildlife (protection) act came in to existence ? Answer

    1972 amended in 1983,1986,1991

11. Cloud, Rains, Storms and all water cycle occur in which layer of atmoshphere ? Answer

    Troposphere

12. When was the Environmental protection act in India came in to existence ? Answer

    1986

13. All man made pollutions affects which layer of atmosphere ? Answer
    

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    Troposphere

14. When was the Urban Land (ceiling and regulation) act enacted in India ? Answer

    1976

15. Ozone is located in which layer of atmosphere ? Answer

    Troposphere

16. Which act was the out come of Stockholm Conference held in 1972 ? Answer

    Air (Prevention and Control of Pollution) Act – 1981 , amended in 1987

17. What is 'POPs' in Environmental Science ? Answer
    

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    Persistent Organic Pollutants - also called as 'dirty dozen'

18. Forest conservation act was enacted in the year ________? Answer

    1980 amended in 1988

19. What all are 'dirty dozen' or 'POPs' ? Answer

    Aldrin, Chlordane, DDT, Dieldrin, Dioxins, Endrin, Furans, Heptachlor, Hexachlorobenzene (HCB), mirex, polychlorinated biphenyls (PCBs) and toxaphene.

20. When was the Radiation protection rules act enacted in India ? Answer

    1972