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ISC Class XII Board Exam 2017 : 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) Name any two ways by which a country can acquire carbon credits. [2] (ii) Give any two ways to achieve local self-sufficiency. [2] (iii) What is meant by ecological foot print? [2] (iv) Differentiate between copyright and trade secret. [2] (v) Distinguish between the two schools of thought based on Marx s view on environment. [2] (vi) Give any two examples of ex-situ conservation. Also, name any two biosphere reserves of India. [2] (vii) Name any four types of traditional rain water harvesting systems. [2] (viii) Explain briefly any two biological indicators of soil quality. [2] (ix) What are bio-fertilizers? Give any two examples of bio-fertilizers. [2] (x) Give two ways by which women s employment regulates population. [2] ------------------------------------------------------------------------------------------------------------------------This paper consists of 3 printed pages and 1 blank page. 1217-877 Copyright reserved. Turn over

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