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ISC Class XII Board Specimen 2022 : Environmental Science [Semester 2]

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

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ISC SEMESTER 2 EXAMINATION SPECIMEN QUESTION PAPER ENVIRONMENTAL SCIENCE ----------------------------------------------------------------------------------------------Maximum Marks: 35 Time allowed: One and a half hour Candidates are allowed an additional 10 minutes for only reading the paper. They must NOT start writing during this time. ---------------------------------------------------------------------------------------------------------------- Answer all questions in Section A, Section B and Section C. The intended marks for questions or parts of questions are given in brackets.[ ] ---------------------------------------------------------------------------------------------------------------- SECTION A - 7 MARKS Question 1 (i) Expand N T. [1] (ii) A system of keeping record of stocks and stock changes of natural assets comprising biota and its ecosystems is called _____________ , [1] (iii) Name any two common food adulterants. [1] (iv) Give any two examples of ubiquitous resources. [1] (v) When was WTO established? [1] (a) 1990 (b) 1995 (c) 1993 (d) 1996 (vi) What are the two types of externalities? [1] (vii) Name any two sustainable practices of pest management for improving soil fertility. [1] 1 SECTION B - 12 MARKS Answer the following questions briefly Question 2 [2] Compare and contrast Tied Aid and Untied Aid based on its advantages. Question 3 [2] Mention two points included in legislation for post-Independence land reforms. Question 4 [2] State any two disadvantages of GNP. Question 5 [2] Give any two features of Defensive expenditure. Question 6 [2] Mention any two objectives of GATT. Question 7 [2] What are TNCs? Give one advantage that TNCs have over domestic industries. SECTION C (16 Marks) Question 8 [4] Discuss any four effects of Government policies leading to deforestation in Amazonia. Question 9 (i) [4] Give two points to differentiate between food preservation and food additives. Briefly explain any two methods of food preservation. OR (ii) Differentiate between micro irrigation and macro irrigation. Briefly explain any one advantage and any one disadvantage of micro irrigation. Question 10 [4] Trace the trend of trade in India from the pre-colonial period to the present day with regard to composition and terms of trade. 2 Question 11 Read the following passage and answer the questions that follow. Environmental economics recognizes the fact that the environment provides resources both renewable and non-renewable, assimilates waste and provides aesthetic pleasure. However, their value is not recognized as their services cannot be marketed. Hence in the absence of proper valuation there is inefficient and unfavourable allocation of resources. Environmental economics seeks to assign a cost to these intangible factors in order to arrive at a more appropriate market price. (i) Based on the passage given above, what is meant by Environmental economics? [2] (ii) Briefly discuss the need for Environmental economics. [2] 3

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