8. Sustainable development refers 00 :
(३) Satisfying human needs while preserving the environment

(0) Industrial development by maintaining steady flow of raw materials
() Self sufficiency in energy needs

(6) Sustaining the quality of life of ல by industrial development

9. The freshwater lake that is the source of daily water use for Kollam 15 ;
(घ) Ashtamudi lake (b) Vembanad lake
(६) Paravoor lake (d) Sasthamkotta lake

10. A biodiversity hotspot in Kerala is -

(8 Kumarakam (b) Western Ghats
(€) Bekel Fort ⋅ (d)chbanadLske
11.’!‘heprims_rvsuurceoforganic pollution in fresh water bodies is :
(ദ Urban run-off രു Run-off from agricultural fields
(टो Industrial discharge (3) Sewage effluent
12. Which one of the green house gases has the shortest residence time in 100 ೩0170500076)
(ഭു Nitrous oxide (b) Chlorofluoro carbon
) Carbon dioxide (प) Methane
18, Which of the fellowing cities is worst effected by urban smog in recent times?
(8) 1.05 Angels (४) London
(८) परल] ५ ` धि) New Delhi

14. Radiation can act as a mutagen because it ;
(೩) Deactivates the immune system
(b) Interferes with the activities of nerve cells
(9 Causes muscles to grow at unusual rates
(6) Damages genetic material in cells

15, Among the most impbrtant characteristics of chemical in determining their environmental

risks is/are ;
(3) Solubility (b) Persistence
(८) Reactivity (6) All of these
16. What is largest contributor to carbon dioxide emission in India ?
(8) Burning coal (0) Firewood
(£ Coal (6) Cooking gas

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