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ISC Class XII Board Exam 2018 : Environmental Science Paper 1 (Theory)

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ISC 12th
Indian School Certificate Examination (ISC), New Delhi

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ENVIRONMENTAL SCIENCE PAPER 1 (THEORY) (Maximum Marks: 70) (Time allowed: Three hours) (Candidates are allowed additional 15 minutes for only reading the paper. They must NOT start writing during this time.) ------------------------------------------------------------------------------------------------------------------------Answer Question 1 (compulsory) from Part I and five questions from Part II, choosing at least one question from each of the Sections A, B and C. The intended marks for questions or parts of questions are given in brackets [ ]. ------------------------------------------------------------------------------------------------------------------------- PART I (20 Marks) Answer all questions. Question 1 (i) Mention two disadvantages of macro irrigation. [2] (ii) Who coined the term deep ecology and when? [2] (iii) Differentiate between insitu and exsitu methods of wildlife conservation. [2] (iv) With reference to urban environment, mention any two problems and their solutions. [2] (v) Differentiate between immigration and emigration. [2] (vi) Mention any two advantages of Physical Accounting. [2] (vii) Write the full form of each of the following: [2] (a) CNG (b) GATT (viii) Classify natural resources based on their origin and distribution. [2] (ix) [2] (x) Explain the terms: (a) Industrial design (b) Patents Mention any four factors regulating population size of an area. [2] ------------------------------------------------------------------------------------------------------------------------This paper consists of 3 printed pages and 1 blank page. 1218-877 Copyright reserved. Turn over PART II (50 Marks) Answer five questions in all, choosing at least one question from each of the Sections A, B, and C. SECTION A Question 2 (a) Write a short note on Gary Snyder. [6] (b) What is meant by a survivorship curve? survivorship curves. Explain the three shapes of [4] Question 3 (a) What is Joint Forestry Management? State its objectives. [6] (b) Write a short note on Earth First. [4] Question 4 (a) What is NAMP? Discuss any five objectives of this programme. [6] (b) Discuss the basic Gandhian approach for rural development. How would you contrast Gandhian approach with the present growth paradigm? [4] SECTION B Question 5 (a) Discuss the adoption of sustainable management of traffic in Bogota. [6] (b) Discuss the successes and failures of Project Tiger. Support your answer giving reasons. [4] Question 6 (a) Define population. Explain any three factors that affect the birth rate and any two factors that affect the death rate in human population. [6] (b) Deforestation is a major problem in Amazonian rain forests . Discuss any four solutions to control this problem. [4] Question 7 (a) What is WTO? Discuss any two principles and any three functions of WTO. [6] (b) Explain the different zones of the biosphere reserves. [4] ------------------------------------------------------------------------------------------------------------------------2 1218-877 SECTION C Question 8 (a) Explain any six ecological impacts of Green Revolution. [6] (b) What is meant by IPM? implemented. [4] Discuss any three ways by which IPM is Question 9 (a) Describe the physical indicators of soil quality. [6] (b) Write a short note on Bamako Convention. [4] Question 10 (a) What is meant by natural capital? Why do we need to preserve it? Discuss four ways to regenerate natural capital. [6] (b) Explain any four steps to reduce vehicular pollution. [4] ------------------------------------------------------------------------------------------------------------------------3 1218-877

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