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ISC Class XII Board Exam 2019 : 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) State the basic principles of stewardship of land. [2] (ii) Give any two impacts of genetic erosion on ecosystem. [2] (iii) Define carrying capacity. State any two factors that determine the carrying capacity of [2] an ecosystem. (iv) Give any two scarce resources which are diverted to make luxury goods. [2] (v) List any two benefits of local market to the villagers. [2] (vi) Distinguish traditional agriculture from modern agriculture. [2] (vii) List any two ecological impacts of the Transnational Companies. [2] (viii) Mention any two chemical indicators of soil quality. [2] (ix) Give two objectives of Basel Convention. [2] (x) Give the full forms of: [2] (a) IPR (b) GNP ------------------------------------------------------------------------------------------------------------------------This paper consists of 3 printed pages and 1 blank page. 1219-877 Copyright reserved. Turn over

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