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ISC Class XI Board Specimen 2019 : Geography

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ISC 11th
Indian School Certificate Examination (ISC), New Delhi

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GEOGRAPHY 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 Sections A and B from Part I which are compulsory. Answer any four questions from Part II. Sketch maps and diagrams should be drawn wherever they serve to illustrate your answer. The intended marks for questions or parts of questions are given in brackets [ ]. ---------------------------------------------------------------------------------------------------PART I (30 Marks) Answer all questions. SECTION A Question 1 [10 (i) Mention two drawbacks of the sedimentation method in determining the age of the earth. (ii) What is a Shadow Zone and why is it formed on the surface of the earth? (iii) Name the metamorphosed form of the following rocks: (a) Granite (b) Sandstone (iv) Differentiate between Exfoliation and Block Disintegration. (v) Study the diagram given below: 2] (a) Identify the feature. (b) Name the agent of gradation responsible for its formation. -----------------------------------------------------------------------------------------------------------------------1 SPECIMEN QUESTION PAPER CLASS XI - 2019 (vi) Out of the total 100 units insolation, only 51 units reach the surface of the earth. Explain what happens to the remaining units. (vii) With the help of a neat labelled diagram show the position of the Sun, Earth and Moon during the Spring tide. (viii) Mention two reasons for India being a home to a variety of unique ecosystems. (ix) Mention two characteristic features of the rainfall in the equatorial region. (x) What is rain water harvesting? Why is it gaining popularity in India? SECTION B Question 2 [10] On the outline map of the World provided: (a) Mark and label the Drakensburg Range. (b) Trace the course and label the river Mackenzie. (c) Mark and label the Persian Gulf. (d) Show the direction with an arrow and label the Gulf Stream. (e) Mark and label the Anatolian plateau. (f) Point with an arrow and label the island of Tasmania. (g) Point an arrow to locate and label The Strait of Magellan. (h) Mark an area in South America experiencing Mediterranean climate. (i) Trace the course and label River Hwang Ho. (j) Mark and label the Himalayas. Note: All the map work, including legend (Index) should be done on the map sheet only. -----------------------------------------------------------------------------------------------------------------------2 SPECIMEN QUESTION PAPER CLASS XI - 2019 PART II (40 Marks) Answer any four questions. Question 3 (a) Explain the origin of the Universe according to the Big Bang Theory. [2] (b) (i) Mention any two differences between the Upper Crust and the Lower Crust of the Earth. [2] (ii) Name the discontinuity that exists between the Mantle and the Core. [1] (i) Why are Sedimentary rocks called stratified rocks? Give one example of sedimentary rock. [2] (ii) Why are Igneous rocks called primary rocks? [1] (c) (d) With the help of a neat labelled diagram show the Rock Cycle. [2] Question 4 (a) (i) Why are volcanoes considered as the Safety Valves of the earth? [1] (ii) Draw a neat labelled diagram of a Composite Volcanic cone. [1] (b) Explain any two evidences put forward by Wegener to support his theory of the Continental Drift. [2] (c) Differentiate between the following: [3] (d) (i) Epicentre and Focus (ii) Volcanic mountain and Residual mountain (iii) Convergent Plate Boundary and Divergent Plate Boundary. (i) Gradation is the product of the combined actions of Degradation, Transportation and Aggradation. Explain. [2] (ii) How are Laterite Soils formed? [1] Question 5 (a) With the help of neat labelled diagrams show the following and give reasons for their difference: [3] (i) Shape of river Valley in the Upper Course. (ii) Shape of a glacial valley in the mountain. -----------------------------------------------------------------------------------------------------------------------3 SPECIMEN QUESTION PAPER CLASS XI - 2019 (b) Study the photograph given below and answer the questions that follow: (i) (c) Identify the feature. [1] (ii) Explain how this is formed. [2] Differentiate between the following: [2] (i) Fringing Reef and Atoll (ii) Stalactite and Stalagmite (d) (i) Why is there an urgent need for conservation of water resources in our country? [2] (a) Other than reflection, scattering, absorption and giving the morning and evening sky an orange hue, explain an important role played by dust particles in the atmosphere. [2] (b) With the help of a neat labelled diagram show the major pressure belts in the Northern Hemisphere. [2] (c) Give Geographical reasons to explain why: [2] Question 6 (i) The troposphere is thicker over the equator and shallow over the poles. (ii) Isotherms bend while crossing from land to oceans. (d) Differentiate between Relative Humidity and Absolute Humidity. [2] (e) Mention the characteristic features of Convectional rainfall. [2] -----------------------------------------------------------------------------------------------------------------------4 SPECIMEN QUESTION PAPER CLASS XI - 2019 Question 7 (a) Differentiate between [2] (i) Continental Shelf and Continental Slope (ii) Terrigenous Deposits and Pelagic Deposits (b) Mention three factors which influence salinity in oceans. [3] (c) State three ways in which ocean currents influence life along the regions they flow. [3] (d) Explain the role of El Nino in influencing monsoons over India. [2] Question 8 (a) Briefly explain the different components of the biosphere. [3] (b) Mention any two reasons explaining the need for conserving biodiversity. [2] (c) Explain the following terms: [2] (d) (i) Gene banks (ii) Biodiversity Study the given sketch map and answer the following: (i) Name the climatic region shown on the map, labelled A. (ii) State the climatic conditions of the given region. (iii) Name the dominant natural vegetation found in this climatic region. [3] -----------------------------------------------------------------------------------------------------------------------5 SPECIMEN QUESTION PAPER CLASS XI - 2019 Question 9 (a) Briefly discuss any three factors responsible for climate change. [3] (b) With reference to India, answer the following questions: [2] (c) (d) (i) State any one evidence which shows climatic change has taken place in India. (ii) Mention any two measures taken to adapt to the climatic change you have mentioned in question (b) (i). (i) Identify the natural disaster from the given photograph and answer the following questions: [1] (ii) Mention any two causes for the occurrence of this natural disaster. [1] (iii) Name any one region affected by it in India. [1] (iv) Mention any two remedial measures to reduce its impact on human life. [1] State any two causes of floods in India. [1] -----------------------------------------------------------------------------------------------------------------------6 SPECIMEN QUESTION PAPER CLASS XI - 2019 UNIQUE IDENTIFICATION NO.: INDEX NO.: . (This map must be fastened with all other answers) MAP FOR Q. NO. 2. MAP OF THE WORLD

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