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ISC Class XII Board Exam 2020 : Environmental Science

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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) Define deep ecology. How is the concept of deep ecology different from shallow ecology? [2] (ii) Mention any two factors influencing the growth of population. [2] (iii) Give any four characteristics of r strategy. [2] (iv) Give any two differences between a national park and a sanctuary. [2] (v) Differentiate between primary pollutants and secondary pollutants. Give one example each. [2] (vi) Give any two socio-economic benefits of cottage industries. [2] (vii) What is food adulteration? Name two of the common food adulterants. [2] (viii) Give the full forms of: (a) MFN (b) EPR [2] (ix) Classify the natural resources based on its distribution, giving examples. [2] (x) What is IPR? State any two categories of IPR. [2] ------------------------------------------------------------------------------------------------------------------------This paper consists of 3 printed pages and 1 blank page. 1220-877 Copyright reserved. Turn over

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