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2020, , Full Marks: 80 UG SEM-I, Time : 3 Hours AECC-1 (ENVS), For Hons, , (ENVIRONMENTAL STUDIES), , Answer All questions as directed., The figures in the margin indicate full marks for the questions, , Q.1. Answer all questions 12X 1-12, 1.1. The sum total of all external factors, substances, and conditions which influence organisms without, becoming their part is called as, 1.2. The soil with high water holding capacity is called as ., 1.3. The growth curve that hits the carrying capacity is shaped., 1.4. Transition zone between two ecosystems is, 1.5. The rate of organic matter synthesized by producers per unit area per unit time is, 1.6. The world forestry day is celebratedon, 1.7, Chandi Prasad Bhatt was leader of movement., 1.8. Expand MAB., 1.9. DDT and BHC are not non-biodegradable pollutant True or false., 1.10. Term “acid rain” was given by, 1.11. The disease caused due to excess of mercury in water is, 1,12. The gas that caused Bhopal gas tragedy is :, Q.2. Answer Any Eight within 50 words each 8X2=16, 2.1. | Write the name of four primary air pollutants., 2.2. Define stone leprosy., 2.3. Define the three zones of a biosphere reserve in a diagram., 2.4. Write the names of engendered and extinct flora or fauna of two each., 2.5. | Communicable diseases possess more threat over non-communicable disease. Justify, 2.6. Define the head office of state and central pollution control board., 2.7. Explain the tillage method of soil conservation, 2.8. Differentiate the GPP and NPP, 2.9. Explain the 10% law., 2.10. Which age pyramid is more stable and why?, Q3. Answer Any Eight within 75 words each 8X3=24, 3.1. Define the environment protection Act, 1972., 3.2. Explain the negative impacts of urbanization in brief., 3.3. Draw the carbon cycle., 3.4. Explain denitrification. Write names of some denitrifying microbes., 3.5. Explain the vital index with formula., 3.6. | Write the equation for s and j shaped growths of population., 3.7. Define photochemical smog., 3.8. How global population problem can be solved?, 3.9. | Throw some light on Narmada Bachao Andolan., 3.10. Write names of three women environmental activist and their major contributions., Q.4, Answer all questions within 500 words each 4X7=28, 4.1. Energy flow in the ecosystem is unidirectional. Justify, , 4.2., , 43., , 4.4., , 20SEM-1, , OR, , Define the gaseous cycles, Draw and define the nitrogen cycle., , What are the roles of an individual for prevention of pollution? Explain your views beyond government plan, OR, , How a community is structured?, , Discuss any two environmental movements in India that has major impact., OR, Give a brief account on means of conversation of soil., , Describe the components of a pond ecosystem and elaborate the pyramid of biomass in pond ecosystem., OR, Write the methods of controlling communicable and non-communicable diseases in brief., , /Arts/Com/Sci/AECC-1 (ENVS) KU