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ISC Class XII Board Specimen 2023 : Environmental Science

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ISC 12th
Indian School Certificate Examination (ISC), New Delhi
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ENVIRONMENTAL SCIENCE ---------------------------------------------------------------------------------------------------------------- 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 all questions in Section A, Section B and Section C. Section A consists of objective / very short answer questions. Section B consists of short answer questions. Section C consists of long answer questions. The intended marks for questions or parts of questions are given in brackets [ ]. ---------------------------------------------------------------------------------------------------------------- SECTION A - 14 MARKS Question 1 (i) (ii) An organism that requires high level of dissolved oxygen is: (a) Catfish (b) Trout (c) Seahorse (d) Worm Which one of the following is NOT a greenhouse gas? (a) Carbon Monoxide (b) Carbon Dioxide (c) Methane (d) Carbontetra Chloride [1] [1] --------------------------------------------------------------------------------------------------------------ISC SPECIMEN QUESTION PAPER 2023 1

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